315332945 has 4 divisors (see below), whose sum is σ = 378399540. Its totient is φ = 252266352.

The previous prime is 315332929. The next prime is 315332947. The reversal of 315332945 is 549233513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82373776 + 232959169 = 9076^2 + 15263^2 .

It is a cyclic number.

It is not a de Polignac number, because 315332945 - 2⁴ = 315332929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315332947) 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, 31533290 + ... + 31533299.

It is an arithmetic number, because the mean of its divisors is an integer number (94599885).

Almost surely, 2^315332945 is an apocalyptic number.

It is an amenable number.

315332945 is a deficient number, since it is larger than the sum of its proper divisors (63066595).

315332945 is an equidigital number, since it uses as much as digits as its factorization.

315332945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63066594.

The product of its digits is 48600, while the sum is 35.

The square root of 315332945 is about 17757.6165348844. The cubic root of 315332945 is about 680.6488508303.

The spelling of 315332945 in words is "three hundred fifteen million, three hundred thirty-two thousand, nine hundred forty-five".