315394018 has 8 divisors (see below), whose sum is σ = 479571948. Its totient is φ = 155536704.

The previous prime is 315393943. The next prime is 315394019. The reversal of 315394018 is 810493513.

It can be written as a sum of positive squares in 2 ways, for example, as 304746849 + 10647169 = 17457^2 + 3263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (315394019) 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, 1079971 + ... + 1080262.

Almost surely, 2^315394018 is an apocalyptic number.

315394018 is a deficient number, since it is larger than the sum of its proper divisors (164177930).

315394018 is a wasteful number, since it uses less digits than its factorization.

315394018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160308.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 315394018 is about 17759.3360799327. The cubic root of 315394018 is about 680.6927901908.

The spelling of 315394018 in words is "three hundred fifteen million, three hundred ninety-four thousand, eighteen".