317715172 has 6 divisors (see below), whose sum is σ = 556001558. Its totient is φ = 158857584.

The previous prime is 317715163. The next prime is 317715239. The reversal of 317715172 is 271517713.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 304711936 + 13003236 = 17456^2 + 3606^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39714393 + ... + 39714400.

Almost surely, 2^317715172 is an apocalyptic number.

It is an amenable number.

317715172 is a deficient number, since it is larger than the sum of its proper divisors (238286386).

317715172 is a wasteful number, since it uses less digits than its factorization.

317715172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79428797 (or 79428795 counting only the distinct ones).

The product of its digits is 10290, while the sum is 34.

The square root of 317715172 is about 17824.5665304938. The cubic root of 317715172 is about 682.3585716871.

The spelling of 317715172 in words is "three hundred seventeen million, seven hundred fifteen thousand, one hundred seventy-two".