315063257 has 4 divisors (see below), whose sum is σ = 315114000. Its totient is φ = 315012516.

The previous prime is 315063241. The next prime is 315063271. The reversal of 315063257 is 752360513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315063257 - 2⁴ = 315063241 is a prime.

It is a super-2 number, since 2×315063257² = 198529711822896098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315063457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14507 + ... + 28992.

It is an arithmetic number, because the mean of its divisors is an integer number (78778500).

Almost surely, 2^315063257 is an apocalyptic number.

It is an amenable number.

315063257 is a deficient number, since it is larger than the sum of its proper divisors (50743).

315063257 is an equidigital number, since it uses as much as digits as its factorization.

315063257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50742.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 315063257 is about 17750.0213239309. The cubic root of 315063257 is about 680.4547542035.

The spelling of 315063257 in words is "three hundred fifteen million, sixty-three thousand, two hundred fifty-seven".