315275551 has 2 divisors, whose sum is σ = 315275552. Its totient is φ = 315275550.

The previous prime is 315275461. The next prime is 315275561. The reversal of 315275551 is 155572513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315275551 - 2¹⁵ = 315242783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315275561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157637775 + 157637776.

It is an arithmetic number, because the mean of its divisors is an integer number (157637776).

Almost surely, 2^315275551 is an apocalyptic number.

315275551 is a deficient number, since it is larger than the sum of its proper divisors (1).

315275551 is an equidigital number, since it uses as much as digits as its factorization.

315275551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26250, while the sum is 34.

The square root of 315275551 is about 17756.0004223924. Note that the first 3 decimals coincide. The cubic root of 315275551 is about 680.6075531785.

The spelling of 315275551 in words is "three hundred fifteen million, two hundred seventy-five thousand, five hundred fifty-one".