14557
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 14558
- 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
- 14556
- Möbius Function
- -1
- Radical
- 14557
- 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
- 164
- 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
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 1706
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 90 ones.at n=8A031858
- Successive approximations to 5-adic integer sqrt(-1).at n=6A034935
- One of the two successive approximations up to 5^n for the 5-adic integer sqrt(-1).at n=6A048898
- Smallest prime factor of n!+1.at n=29A051301
- Primes at which the difference pattern X42Y (X and Y >= 6) occurs in A001223.at n=30A052164
- Numbers k such that k^4 == 1 (mod 5^5).at n=18A056102
- Smallest prime p associated with A064164(n).at n=15A064229
- Expansion of g.f. (1-x-x^3+x^4-2*x^2)/((1-2*x)*(x-1)^2*(x+1)^2).at n=17A106157
- Smallest prime p such that 5^n divides p^4 - 1.at n=4A125610
- Smallest prime p such that 5^n divides p^4 - 1.at n=5A125610
- Smallest odd prime base q such that p^5 divides q^(p-1) - 1, where p = prime(n).at n=2A125646
- Smallest odd prime base q such that p^6 divides q^(p-1) - 1, where p = Prime[n].at n=2A125647
- Primes of the form 210k + 67.at n=34A140855
- Primes congruent to 23 mod 43.at n=41A142272
- Primes congruent to 34 mod 47.at n=40A142385
- Primes congruent to 4 mod 49.at n=37A142417
- Primes congruent to 35 mod 53.at n=32A142565
- Primes congruent to 43 mod 59.at n=31A142770
- Primes congruent to 39 mod 61.at n=24A142837
- Triangle of primes described in A144954, read by rows.at n=24A144960