315609056 has 36 divisors (see below), whose sum is σ = 710719128. Its totient is φ = 135147072.

The previous prime is 315609037. The next prime is 315609067. The reversal of 315609056 is 650906513.

It is a super-2 number, since 2×315609056² = 199218152458422272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 265295 + ... + 266481.

It is an arithmetic number, because the mean of its divisors is an integer number (19742198).

Almost surely, 2^315609056 is an apocalyptic number.

It is an amenable number.

315609056 is an abundant number, since it is smaller than the sum of its proper divisors (395110072).

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

315609056 is an frugal number, since it uses more digits than its factorization.

315609056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 315609056 is about 17765.3892724027. The cubic root of 315609056 is about 680.8474555237.

The spelling of 315609056 in words is "three hundred fifteen million, six hundred nine thousand, fifty-six".