315324993 has 16 divisors (see below), whose sum is σ = 446769216. Its totient is φ = 197137920.

The previous prime is 315324983. The next prime is 315325013. The reversal of 315324993 is 399423513.

It is not a de Polignac number, because 315324993 - 2¹⁰ = 315323969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315324913) 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, 3330 + ... + 25332.

It is an arithmetic number, because the mean of its divisors is an integer number (27923076).

Almost surely, 2^315324993 is an apocalyptic number.

It is an amenable number.

315324993 is a deficient number, since it is larger than the sum of its proper divisors (131444223).

315324993 is a wasteful number, since it uses less digits than its factorization.

315324993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22304.

The product of its digits is 87480, while the sum is 39.

The square root of 315324993 is about 17757.3926295501. The cubic root of 315324993 is about 680.6431292956.

The spelling of 315324993 in words is "three hundred fifteen million, three hundred twenty-four thousand, nine hundred ninety-three".