12145956 has 24 divisors (see below), whose sum is σ = 30008160. Its totient is φ = 3810432.

The previous prime is 12145937. The next prime is 12145981. The reversal of 12145956 is 65954121.

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, 29566 + ... + 29973.

It is an arithmetic number, because the mean of its divisors is an integer number (1250340).

Almost surely, 2^12145956 is an apocalyptic number.

It is an amenable number.

12145956 is an abundant number, since it is smaller than the sum of its proper divisors (17862204).

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

12145956 is a wasteful number, since it uses less digits than its factorization.

12145956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59563 (or 59561 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 12145956 is about 3485.1048764707. The cubic root of 12145956 is about 229.8673210825.

The spelling of 12145956 in words is "twelve million, one hundred forty-five thousand, nine hundred fifty-six".