12318912 has 56 divisors (see below), whose sum is σ = 36220400. Its totient is φ = 4105728.

The previous prime is 12318907. The next prime is 12318913. The reversal of 12318912 is 21981321.

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

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12318913) 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 in 7 ways as a sum of consecutive naturals, for example, 1837 + ... + 5292.

Almost surely, 2^12318912 is an apocalyptic number.

12318912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12318912 is an abundant number, since it is smaller than the sum of its proper divisors (23901488).

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

12318912 is an equidigital number, since it uses as much as digits as its factorization.

12318912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7150 (or 7134 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 12318912 is about 3509.8307651509. The cubic root of 12318912 is about 230.9532710336.

It can be divided in two parts, 123189 and 12, that added together give a square (123201 = 351²).

The spelling of 12318912 in words is "twelve million, three hundred eighteen thousand, nine hundred twelve".