315725136 has 20 divisors (see below), whose sum is σ = 815623392. Its totient is φ = 105241696.

The previous prime is 315725129. The next prime is 315725141. The reversal of 315725136 is 631527513.

It is a junction number, because it is equal to n+sod(n) for n = 315725097 and 315725106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3288756 + ... + 3288851.

Almost surely, 2^315725136 is an apocalyptic number.

It is an amenable number.

315725136 is an abundant number, since it is smaller than the sum of its proper divisors (499898256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315725136 is a wasteful number, since it uses less digits than its factorization.

315725136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577618 (or 6577612 counting only the distinct ones).

The product of its digits is 18900, while the sum is 33.

The square root of 315725136 is about 17768.6559986961. The cubic root of 315725136 is about 680.9309164635.

The spelling of 315725136 in words is "three hundred fifteen million, seven hundred twenty-five thousand, one hundred thirty-six".