315181996 has 12 divisors (see below), whose sum is σ = 555912448. Its totient is φ = 156349872.

The previous prime is 315181981. The next prime is 315182027. The reversal of 315181996 is 699181513.

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, 309711 + ... + 310726.

Almost surely, 2^315181996 is an apocalyptic number.

It is an amenable number.

315181996 is a deficient number, since it is larger than the sum of its proper divisors (240730452).

315181996 is a wasteful number, since it uses less digits than its factorization.

315181996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620568 (or 620566 counting only the distinct ones).

The product of its digits is 58320, while the sum is 43.

The square root of 315181996 is about 17753.3657653978. The cubic root of 315181996 is about 680.5402252609.

The spelling of 315181996 in words is "three hundred fifteen million, one hundred eighty-one thousand, nine hundred ninety-six".