313975257 has 16 divisors (see below), whose sum is σ = 433525440. Its totient is φ = 201886272.

The previous prime is 313975243. The next prime is 313975271. The reversal of 313975257 is 752579313.

It is an interprime number because it is at equal distance from previous prime (313975243) and next prime (313975271).

It is not a de Polignac number, because 313975257 - 2⁴ = 313975241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313975217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161463 + ... + 163395.

It is an arithmetic number, because the mean of its divisors is an integer number (27095340).

Almost surely, 2^313975257 is an apocalyptic number.

It is an amenable number.

313975257 is a deficient number, since it is larger than the sum of its proper divisors (119550183).

313975257 is a wasteful number, since it uses less digits than its factorization.

313975257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832.

The product of its digits is 198450, while the sum is 42.

The square root of 313975257 is about 17719.3469687796. The cubic root of 313975257 is about 679.6705851116.

The spelling of 313975257 in words is "three hundred thirteen million, nine hundred seventy-five thousand, two hundred fifty-seven".