2318312 has 8 divisors (see below), whose sum is σ = 4346850. Its totient is φ = 1159152.

The previous prime is 2318311. The next prime is 2318317. The reversal of 2318312 is 2138132.

It can be written as a sum of positive squares in only one way, i.e., 1779556 + 538756 = 1334^2 + 734^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2318311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144887 + ... + 144902.

2^2318312 is an apocalyptic number.

It is an amenable number.

2318312 is a deficient number, since it is larger than the sum of its proper divisors (2028538).

2318312 is a wasteful number, since it uses less digits than its factorization.

2318312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289795 (or 289791 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 2318312 is about 1522.6004071982. The cubic root of 2318312 is about 132.3500047027.

The spelling of 2318312 in words is "two million, three hundred eighteen thousand, three hundred twelve".