315139564 has 6 divisors (see below), whose sum is σ = 551494244. Its totient is φ = 157569780.

The previous prime is 315139547. The next prime is 315139577. The reversal of 315139564 is 465931513.

It is a happy number.

It is a super-2 number, since 2×315139564² = 198625889596220192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39392442 + ... + 39392449.

Almost surely, 2^315139564 is an apocalyptic number.

It is an amenable number.

315139564 is a deficient number, since it is larger than the sum of its proper divisors (236354680).

315139564 is a wasteful number, since it uses less digits than its factorization.

315139564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78784895 (or 78784893 counting only the distinct ones).

The product of its digits is 48600, while the sum is 37.

The square root of 315139564 is about 17752.1706841727. The cubic root of 315139564 is about 680.5096841988.

The spelling of 315139564 in words is "three hundred fifteen million, one hundred thirty-nine thousand, five hundred sixty-four".