317239197 has 16 divisors (see below), whose sum is σ = 467002368. Its totient is φ = 189948080.

The previous prime is 317239189. The next prime is 317239201. The reversal of 317239197 is 791932713.

It is a cyclic number.

It is not a de Polignac number, because 317239197 - 2³ = 317239189 is a prime.

It is a super-2 number, since 2×317239197² = 201281416226409618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317239997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55173 + ... + 60650.

It is an arithmetic number, because the mean of its divisors is an integer number (29187648).

Almost surely, 2^317239197 is an apocalyptic number.

It is an amenable number.

317239197 is a deficient number, since it is larger than the sum of its proper divisors (149763171).

317239197 is a wasteful number, since it uses less digits than its factorization.

317239197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115920.

The product of its digits is 71442, while the sum is 42.

The square root of 317239197 is about 17811.2098690684. The cubic root of 317239197 is about 682.0176500336.

The spelling of 317239197 in words is "three hundred seventeen million, two hundred thirty-nine thousand, one hundred ninety-seven".