317925 has 30 divisors (see below), whose sum is σ = 592658. Its totient is φ = 168480.

The previous prime is 317923. The next prime is 317957. The reversal of 317925 is 529713.

317925 = 20³ + 21³ + ... + 34³.

It can be written as a sum of positive squares in 3 ways, for example, as 6561 + 311364 = 81^2 + 558^2 .

It is not a de Polignac number, because 317925 - 2¹ = 317923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a nialpdrome in base 15.

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 317925.

It is not an unprimeable number, because it can be changed into a prime (317921) 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 29 ways as a sum of consecutive naturals, for example, 1947 + ... + 2103.

2³¹⁷⁹²⁵ is an apocalyptic number.

It is an amenable number.

317925 is a deficient number, since it is larger than the sum of its proper divisors (274733).

317925 is a wasteful number, since it uses less digits than its factorization.

317925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 165 counting only the distinct ones).

The product of its digits is 1890, while the sum is 27.

The square root of 317925 is about 563.8483838764. The cubic root of 317925 is about 68.2508754869.

The spelling of 317925 in words is "three hundred seventeen thousand, nine hundred twenty-five".