317172146 has 16 divisors (see below), whose sum is σ = 490885920. Its totient is φ = 153599520.

The previous prime is 317172143. The next prime is 317172169. The reversal of 317172146 is 641271713.

It is not an unprimeable number, because it can be changed into a prime (317172143) 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, 2516 + ... + 25311.

It is an arithmetic number, because the mean of its divisors is an integer number (30680370).

Almost surely, 2^317172146 is an apocalyptic number.

317172146 is a deficient number, since it is larger than the sum of its proper divisors (173713774).

317172146 is a wasteful number, since it uses less digits than its factorization.

317172146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28009.

The product of its digits is 7056, while the sum is 32.

The square root of 317172146 is about 17809.3274999367. The cubic root of 317172146 is about 681.9695967160.

The spelling of 317172146 in words is "three hundred seventeen million, one hundred seventy-two thousand, one hundred forty-six".