12156252 has 24 divisors (see below), whose sum is σ = 28755216. Its totient is φ = 3996288.

The previous prime is 12156251. The next prime is 12156289. The reversal of 12156252 is 25265121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12156251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6063 + ... + 7814.

It is an arithmetic number, because the mean of its divisors is an integer number (1198134).

Almost surely, 2^12156252 is an apocalyptic number.

12156252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12156252 is an abundant number, since it is smaller than the sum of its proper divisors (16598964).

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

12156252 is a wasteful number, since it uses less digits than its factorization.

12156252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13957 (or 13955 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 12156252 is about 3486.5817070592. The cubic root of 12156252 is about 229.9322547802.

The spelling of 12156252 in words is "twelve million, one hundred fifty-six thousand, two hundred fifty-two".