12129168 has 20 divisors (see below), whose sum is σ = 31333808. Its totient is φ = 4043040.

The previous prime is 12129167. The next prime is 12129197. The reversal of 12129168 is 86192121.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12129167) 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, 126298 + ... + 126393.

Almost surely, 2^12129168 is an apocalyptic number.

It is an amenable number.

12129168 is an abundant number, since it is smaller than the sum of its proper divisors (19204640).

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

12129168 is a wasteful number, since it uses less digits than its factorization.

12129168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252702 (or 252696 counting only the distinct ones).

The product of its digits is 1728, while the sum is 30.

The square root of 12129168 is about 3482.6955077928. The cubic root of 12129168 is about 229.7613655992.

The spelling of 12129168 in words is "twelve million, one hundred twenty-nine thousand, one hundred sixty-eight".