315190312 has 8 divisors (see below), whose sum is σ = 590981850. Its totient is φ = 157595152.

The previous prime is 315190307. The next prime is 315190327. The reversal of 315190312 is 213091513.

It can be written as a sum of positive squares in only one way, i.e., 314494756 + 695556 = 17734^2 + 834^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19699387 + ... + 19699402.

Almost surely, 2^315190312 is an apocalyptic number.

It is an amenable number.

315190312 is a deficient number, since it is larger than the sum of its proper divisors (275791538).

315190312 is a wasteful number, since it uses less digits than its factorization.

315190312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39398795 (or 39398791 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 315190312 is about 17753.5999729632. The cubic root of 315190312 is about 680.5462105042.

The spelling of 315190312 in words is "three hundred fifteen million, one hundred ninety thousand, three hundred twelve".