12531799 has 12 divisors (see below), whose sum is σ = 15082200. Its totient is φ = 10369968.

The previous prime is 12531787. The next prime is 12531809. The reversal of 12531799 is 99713521.

12531799 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 12531799 - 2⁵ = 12531767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12531709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2989 + ... + 5830.

It is an arithmetic number, because the mean of its divisors is an integer number (1256850).

Almost surely, 2^12531799 is an apocalyptic number.

12531799 is a deficient number, since it is larger than the sum of its proper divisors (2550401).

12531799 is an equidigital number, since it uses as much as digits as its factorization.

12531799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8862 (or 8855 counting only the distinct ones).

The product of its digits is 17010, while the sum is 37.

The square root of 12531799 is about 3540.0281072330. The cubic root of 12531799 is about 232.2760722151.

The spelling of 12531799 in words is "twelve million, five hundred thirty-one thousand, seven hundred ninety-nine".