12791256 has 32 divisors (see below), whose sum is σ = 33662400. Its totient is φ = 4039200.

The previous prime is 12791249. The next prime is 12791257. The reversal of 12791256 is 65219721.

12791256 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 not an unprimeable number, because it can be changed into a prime (12791257) 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, 13570 + ... + 14481.

It is an arithmetic number, because the mean of its divisors is an integer number (1051950).

Almost surely, 2^12791256 is an apocalyptic number.

It is an amenable number.

12791256 is an abundant number, since it is smaller than the sum of its proper divisors (20871144).

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

12791256 is a wasteful number, since it uses less digits than its factorization.

12791256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28079 (or 28075 counting only the distinct ones).

The product of its digits is 7560, while the sum is 33.

The square root of 12791256 is about 3576.4865440821. The cubic root of 12791256 is about 233.8681410669.

The spelling of 12791256 in words is "twelve million, seven hundred ninety-one thousand, two hundred fifty-six".