318612 has 24 divisors (see below), whose sum is σ = 849856. Its totient is φ = 91008.

The previous prime is 318601. The next prime is 318629. The reversal of 318612 is 216813.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

318612 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1813 + ... + 1980.

2³¹⁸⁶¹² is an apocalyptic number.

It is an amenable number.

318612 is an abundant number, since it is smaller than the sum of its proper divisors (531244).

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

318612 is a wasteful number, since it uses less digits than its factorization.

318612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807 (or 3805 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 318612 is about 564.4572614468. The cubic root of 318612 is about 68.3000009289.

The spelling of 318612 in words is "three hundred eighteen thousand, six hundred twelve".