12256136 has 8 divisors (see below), whose sum is σ = 22980270. Its totient is φ = 6128064.

The previous prime is 12256117. The next prime is 12256147. The reversal of 12256136 is 63165221.

It can be written as a sum of positive squares in only one way, i.e., 8375236 + 3880900 = 2894^2 + 1970^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766001 + ... + 766016.

Almost surely, 2^12256136 is an apocalyptic number.

It is an amenable number.

12256136 is a deficient number, since it is larger than the sum of its proper divisors (10724134).

12256136 is a wasteful number, since it uses less digits than its factorization.

12256136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532023 (or 1532019 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 12256136 is about 3500.8764616878. The cubic root of 12256136 is about 230.5602974805.

The spelling of 12256136 in words is "twelve million, two hundred fifty-six thousand, one hundred thirty-six".