12180912 has 20 divisors (see below), whose sum is σ = 31467480. Its totient is φ = 4060288.

The previous prime is 12180901. The next prime is 12180913. The reversal of 12180912 is 21908121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12180913) 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, 126837 + ... + 126932.

It is an arithmetic number, because the mean of its divisors is an integer number (1573374).

Almost surely, 2^12180912 is an apocalyptic number.

12180912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12180912 is an abundant number, since it is smaller than the sum of its proper divisors (19286568).

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

12180912 is a wasteful number, since it uses less digits than its factorization.

12180912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253780 (or 253774 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 12180912 is about 3490.1163304394. The cubic root of 12180912 is about 230.0876288654.

The spelling of 12180912 in words is "twelve million, one hundred eighty thousand, nine hundred twelve".