14591
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 14592
- Proper Divisor Sum (Aliquot Sum)
- 1
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 14590
- Möbius Function
- -1
- Radical
- 14591
- Omega Function (Ω)
- 1
- Little Omega Function (ω)
- 1
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- no
- Perfect Square
- no
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 89
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- yes
- Composite Number
- no
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- yes
- Prime Factorization
- no
- Twin Prime
- yes
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 1709
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Primes that remain prime through 3 iterations of function f(x) = 2x + 9.at n=30A023276
- Primes that remain prime through 3 iterations of function f(x) = 8x + 3.at n=6A023292
- Primes that remain prime through 4 iterations of function f(x) = 2x + 9.at n=12A023306
- Smaller of twin prime pairs in consecutively larger seas of composite numbers.at n=26A046928
- Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={-1,1,2}.at n=19A079984
- Numbers k such that Fibonacci(k) concatenated with its 10's complement is prime.at n=25A084621
- Smaller member of a twin prime pair such that the sum sets a record for number of prime divisors (counted with multiplicity).at n=6A086827
- Primes of the form p*q + p + q, where p and q are two successive primes.at n=17A096342
- "Secondary twin primes": a(n) = A006450(A096477(n)).at n=34A096479
- Balanced primes of order ten.at n=4A096702
- Indices of primes in sequence defined by A(0) = 41, A(n) = 10*A(n-1) + 81 for n > 0.at n=15A101738
- Lower bound twin primes such that their digital reverse is prime and a lower bound twin prime.at n=29A101783
- Number of base 13 circular n-digit numbers with adjacent digits differing by 7 or less.at n=4A125425
- a(n) = prime(n)*prime(n+1) + prime(n) + prime(n+1).at n=29A126199
- Lesser of twin primes isolated from neighboring primes by +- 10 (or more).at n=27A138063
- Primes congruent to 36 mod 41.at n=38A142233
- Primes congruent to 14 mod 43.at n=39A142263
- Primes congruent to 21 mod 47.at n=38A142372
- Primes congruent to 38 mod 49.at n=38A142446
- Primes congruent to 16 mod 53.at n=33A142546