12641756 has 12 divisors (see below), whose sum is σ = 22272600. Its totient is φ = 6278160.

The previous prime is 12641749. The next prime is 12641771. The reversal of 12641756 is 65714621.

12641756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10010 + ... + 11201.

It is an arithmetic number, because the mean of its divisors is an integer number (1856050).

Almost surely, 2^12641756 is an apocalyptic number.

It is an amenable number.

12641756 is a deficient number, since it is larger than the sum of its proper divisors (9630844).

12641756 is a wasteful number, since it uses less digits than its factorization.

12641756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21364 (or 21362 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 12641756 is about 3555.5247151440. The cubic root of 12641756 is about 232.9534435153.

The spelling of 12641756 in words is "twelve million, six hundred forty-one thousand, seven hundred fifty-six".