318625 has 8 divisors (see below), whose sum is σ = 397800. Its totient is φ = 254800.

The previous prime is 318601. The next prime is 318629. The reversal of 318625 is 526813.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 529 + 318096 = 23^2 + 564^2 .

It is not a de Polignac number, because 318625 - 2¹¹ = 316577 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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 318625.

It is not an unprimeable number, because it can be changed into a prime (318629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150 + ... + 1399.

It is an arithmetic number, because the mean of its divisors is an integer number (49725).

2³¹⁸⁶²⁵ is an apocalyptic number.

It is an amenable number.

318625 is a deficient number, since it is larger than the sum of its proper divisors (79175).

318625 is an equidigital number, since it uses as much as digits as its factorization.

318625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564 (or 2554 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 318625 is about 564.4687768159. The cubic root of 318625 is about 68.3009298413.

The spelling of 318625 in words is "three hundred eighteen thousand, six hundred twenty-five".