315992 has 8 divisors (see below), whose sum is σ = 592500. Its totient is φ = 157992.

The previous prime is 315977. The next prime is 316003. The reversal of 315992 is 299513.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315992.

It is an unprimeable number.

315992 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19742 + ... + 19757.

2³¹⁵⁹⁹² is an apocalyptic number.

It is an amenable number.

315992 is a deficient number, since it is larger than the sum of its proper divisors (276508).

315992 is a wasteful number, since it uses less digits than its factorization.

315992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39505 (or 39501 counting only the distinct ones).

The product of its digits is 2430, while the sum is 29.

The square root of 315992 is about 562.1316571765. The cubic root of 315992 is about 68.1122712801.

The spelling of 315992 in words is "three hundred fifteen thousand, nine hundred ninety-two".