12156908 has 12 divisors (see below), whose sum is σ = 21326760. Its totient is φ = 6063552.

The previous prime is 12156899. The next prime is 12156983. The reversal of 12156908 is 80965121.

It is a super-3 number, since 3×12156908³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778 + ... + 5241.

It is an arithmetic number, because the mean of its divisors is an integer number (1777230).

Almost surely, 2^12156908 is an apocalyptic number.

It is an amenable number.

12156908 is a deficient number, since it is larger than the sum of its proper divisors (9169852).

12156908 is a wasteful number, since it uses less digits than its factorization.

12156908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7456 (or 7454 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 12156908 is about 3486.6757807402. The cubic root of 12156908 is about 229.9363907273.

The spelling of 12156908 in words is "twelve million, one hundred fifty-six thousand, nine hundred eight".