315631912 has 16 divisors (see below), whose sum is σ = 593291700. Its totient is φ = 157420800.

The previous prime is 315631891. The next prime is 315631913. The reversal of 315631912 is 219136513.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 315630756 + 1156 = 17766^2 + 34^2 .

It is a super-3 number, since 3×315631912³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (315631913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45987 + ... + 52402.

Almost surely, 2^315631912 is an apocalyptic number.

It is an amenable number.

315631912 is a deficient number, since it is larger than the sum of its proper divisors (277659788).

315631912 is a wasteful number, since it uses less digits than its factorization.

315631912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98796 (or 98792 counting only the distinct ones).

The product of its digits is 4860, while the sum is 31.

The square root of 315631912 is about 17766.0325340240. The cubic root of 315631912 is about 680.8638904912.

The spelling of 315631912 in words is "three hundred fifteen million, six hundred thirty-one thousand, nine hundred twelve".