315338919 has 16 divisors (see below), whose sum is σ = 483399168. Its totient is φ = 179112672.

The previous prime is 315338911. The next prime is 315338927. The reversal of 315338919 is 919833513.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (315338911) and next prime (315338927).

It is not a de Polignac number, because 315338919 - 2³ = 315338911 is a prime.

It is a super-2 number, since 2×315338919² = 198877267672177122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315338911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41452 + ... + 48465.

It is an arithmetic number, because the mean of its divisors is an integer number (30212448).

Almost surely, 2^315338919 is an apocalyptic number.

315338919 is a deficient number, since it is larger than the sum of its proper divisors (168060249).

315338919 is a wasteful number, since it uses less digits than its factorization.

315338919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90094.

The product of its digits is 87480, while the sum is 42.

The square root of 315338919 is about 17757.7847435991. The cubic root of 315338919 is about 680.6531491131.

The spelling of 315338919 in words is "three hundred fifteen million, three hundred thirty-eight thousand, nine hundred nineteen".