12159812 has 24 divisors (see below), whose sum is σ = 25105920. Its totient is φ = 5042880.

The previous prime is 12159809. The next prime is 12159827. The reversal of 12159812 is 21895121.

It is a super-2 number, since 2×12159812² = 295722055750688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6137 + ... + 7872.

It is an arithmetic number, because the mean of its divisors is an integer number (1046080).

Almost surely, 2^12159812 is an apocalyptic number.

It is an amenable number.

12159812 is an abundant number, since it is smaller than the sum of its proper divisors (12946108).

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

12159812 is a wasteful number, since it uses less digits than its factorization.

12159812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14051 (or 14049 counting only the distinct ones).

The product of its digits is 1440, while the sum is 29.

The square root of 12159812 is about 3487.0921983796. The cubic root of 12159812 is about 229.9546980720.

The spelling of 12159812 in words is "twelve million, one hundred fifty-nine thousand, eight hundred twelve".