315564457 has 16 divisors (see below), whose sum is σ = 353460240. Its totient is φ = 279724032.

The previous prime is 315564433. The next prime is 315564461. The reversal of 315564457 is 754465513.

It can be written as a sum of positive squares in 8 ways, for example, as 117852736 + 197711721 = 10856^2 + 14061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315564457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315564497) 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, 70593 + ... + 74929.

It is an arithmetic number, because the mean of its divisors is an integer number (22091265).

Almost surely, 2^315564457 is an apocalyptic number.

It is an amenable number.

315564457 is a deficient number, since it is larger than the sum of its proper divisors (37895783).

315564457 is a wasteful number, since it uses less digits than its factorization.

315564457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4572.

The product of its digits is 252000, while the sum is 40.

The square root of 315564457 is about 17764.1340064750. The cubic root of 315564457 is about 680.8153836238.

The spelling of 315564457 in words is "three hundred fifteen million, five hundred sixty-four thousand, four hundred fifty-seven".