315642345 has 32 divisors (see below), whose sum is σ = 535248000. Its totient is φ = 158390784.

The previous prime is 315642329. The next prime is 315642359. The reversal of 315642345 is 543246513.

It is not a de Polignac number, because 315642345 - 2⁴ = 315642329 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38749 + ... + 46181.

It is an arithmetic number, because the mean of its divisors is an integer number (16726500).

Almost surely, 2^315642345 is an apocalyptic number.

It is an amenable number.

315642345 is a deficient number, since it is larger than the sum of its proper divisors (219605655).

315642345 is a wasteful number, since it uses less digits than its factorization.

315642345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7609.

The product of its digits is 43200, while the sum is 33.

The square root of 315642345 is about 17766.3261537100. The cubic root of 315642345 is about 680.8713922408.

Adding to 315642345 its reverse (543246513), we get a palindrome (858888858).

The spelling of 315642345 in words is "three hundred fifteen million, six hundred forty-two thousand, three hundred forty-five".