315372457 has 4 divisors (see below), whose sum is σ = 333923796. Its totient is φ = 296821120.

The previous prime is 315372443. The next prime is 315372467. The reversal of 315372457 is 754273513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 279023616 + 36348841 = 16704^2 + 6029^2 .

It is a cyclic number.

It is not a de Polignac number, because 315372457 - 2⁷ = 315372329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315372427) 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, 9275644 + ... + 9275677.

It is an arithmetic number, because the mean of its divisors is an integer number (83480949).

Almost surely, 2^315372457 is an apocalyptic number.

It is an amenable number.

315372457 is a deficient number, since it is larger than the sum of its proper divisors (18551339).

315372457 is a wasteful number, since it uses less digits than its factorization.

315372457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18551338.

The product of its digits is 88200, while the sum is 37.

The square root of 315372457 is about 17758.7290367301. The cubic root of 315372457 is about 680.6772786392.

The spelling of 315372457 in words is "three hundred fifteen million, three hundred seventy-two thousand, four hundred fifty-seven".