315137946 has 16 divisors (see below), whose sum is σ = 630477504. Its totient is φ = 105012384.

The previous prime is 315137941. The next prime is 315137981. The reversal of 315137946 is 649731513.

It is not an unprimeable number, because it can be changed into a prime (315137941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18595 + ... + 31241.

It is an arithmetic number, because the mean of its divisors is an integer number (39404844).

Almost surely, 2^315137946 is an apocalyptic number.

315137946 is an abundant number, since it is smaller than the sum of its proper divisors (315339558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315137946 is a wasteful number, since it uses less digits than its factorization.

315137946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16805.

The product of its digits is 68040, while the sum is 39.

The square root of 315137946 is about 17752.1251122225. The cubic root of 315137946 is about 680.5085195650.

The spelling of 315137946 in words is "three hundred fifteen million, one hundred thirty-seven thousand, nine hundred forty-six".