317172 has 12 divisors (see below), whose sum is σ = 740096. Its totient is φ = 105720.

The previous prime is 317171. The next prime is 317179. The reversal of 317172 is 271713.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 317172.

It is not an unprimeable number, because it can be changed into a prime (317171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13204 + ... + 13227.

2³¹⁷¹⁷² is an apocalyptic number.

It is an amenable number.

317172 is an abundant number, since it is smaller than the sum of its proper divisors (422924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317172 is a wasteful number, since it uses less digits than its factorization.

317172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26438 (or 26436 counting only the distinct ones).

The product of its digits is 294, while the sum is 21.

The square root of 317172 is about 563.1802553357. The cubic root of 317172 is about 68.1969492075.

Adding to 317172 its reverse (271713), we get a palindrome (588885).

The spelling of 317172 in words is "three hundred seventeen thousand, one hundred seventy-two", and thus it is an iban number.