317725 has 12 divisors (see below), whose sum is σ = 401760. Its totient is φ = 249200.

The previous prime is 317717. The next prime is 317729. The reversal of 317725 is 527713.

It is not a de Polignac number, because 317725 - 2³ = 317717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 317725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1686 + ... + 1864.

It is an arithmetic number, because the mean of its divisors is an integer number (33480).

2³¹⁷⁷²⁵ is an apocalyptic number.

It is an amenable number.

317725 is a deficient number, since it is larger than the sum of its proper divisors (84035).

317725 is a wasteful number, since it uses less digits than its factorization.

317725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 255 counting only the distinct ones).

The product of its digits is 1470, while the sum is 25.

The square root of 317725 is about 563.6710033344. The cubic root of 317725 is about 68.2365607497.

The spelling of 317725 in words is "three hundred seventeen thousand, seven hundred twenty-five".