12317812 has 12 divisors (see below), whose sum is σ = 23214436. Its totient is φ = 5685120.

The previous prime is 12317803. The next prime is 12317813. The reversal of 12317812 is 21871321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4511376 + 7806436 = 2124^2 + 2794^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12317813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118389 + ... + 118492.

Almost surely, 2^12317812 is an apocalyptic number.

It is an amenable number.

12317812 is a deficient number, since it is larger than the sum of its proper divisors (10896624).

12317812 is a wasteful number, since it uses less digits than its factorization.

12317812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236898 (or 236896 counting only the distinct ones).

The product of its digits is 672, while the sum is 25.

The square root of 12317812 is about 3509.6740589405. The cubic root of 12317812 is about 230.9463966126.

The spelling of 12317812 in words is "twelve million, three hundred seventeen thousand, eight hundred twelve".