315172166 has 16 divisors (see below), whose sum is σ = 486250128. Its totient is φ = 153120000.

The previous prime is 315172153. The next prime is 315172211. The reversal of 315172166 is 661271513.

It is a super-2 number, since 2×315172166² = 198666988442263112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12926 + ... + 28238.

It is an arithmetic number, because the mean of its divisors is an integer number (30390633).

Almost surely, 2^315172166 is an apocalyptic number.

315172166 is a deficient number, since it is larger than the sum of its proper divisors (171077962).

315172166 is a wasteful number, since it uses less digits than its factorization.

315172166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15607.

The product of its digits is 7560, while the sum is 32.

The square root of 315172166 is about 17753.0889143270. The cubic root of 315172166 is about 680.5331502164.

The spelling of 315172166 in words is "three hundred fifteen million, one hundred seventy-two thousand, one hundred sixty-six".