12656142 has 32 divisors (see below), whose sum is σ = 28277760. Its totient is φ = 4195800.

The previous prime is 12656129. The next prime is 12656159. The reversal of 12656142 is 24165621.

12656142 is a `hidden beast` number, since 1 + 2 + 656 + 1 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11517 + ... + 12567.

It is an arithmetic number, because the mean of its divisors is an integer number (883680).

Almost surely, 2^12656142 is an apocalyptic number.

12656142 is an abundant number, since it is smaller than the sum of its proper divisors (15621618).

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

12656142 is a wasteful number, since it uses less digits than its factorization.

12656142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285 (or 1279 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 12656142 is about 3557.5471887243. The cubic root of 12656142 is about 233.0417750684.

The spelling of 12656142 in words is "twelve million, six hundred fifty-six thousand, one hundred forty-two".