153457

Properties

Appears in sequences

• Primes of the form 2*p^2 - 1, where p is prime.at n=22A092057
• Primes of the form 2*p^k-1, where p is prime and k > 1.at n=34A178491
• Prime k with sigma(sigma(sigma(k))) < 3*k + 1.at n=31A320517
• Sum of the legs of the unique primitive Pythagorean triple whose inradius is A000217(n) and such that its long leg and its hypotenuse are consecutive natural numbers.at n=23A383834
• Prime numbersat n=14147