12864751 has 12 divisors (see below), whose sum is σ = 13656888. Its totient is φ = 12115664.

The previous prime is 12864749. The next prime is 12864757. The reversal of 12864751 is 15746821.

12864751 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12864751 - 2¹ = 12864749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12864757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43761 + ... + 44053.

It is an arithmetic number, because the mean of its divisors is an integer number (1138074).

Almost surely, 2^12864751 is an apocalyptic number.

12864751 is a deficient number, since it is larger than the sum of its proper divisors (792137).

12864751 is an equidigital number, since it uses as much as digits as its factorization.

12864751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 399 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 12864751 is about 3586.7465759376. The cubic root of 12864751 is about 234.3151997004.

The spelling of 12864751 in words is "twelve million, eight hundred sixty-four thousand, seven hundred fifty-one".