12531886 has 16 divisors (see below), whose sum is σ = 19530000. Its totient is φ = 6023808.

The previous prime is 12531859. The next prime is 12531889. The reversal of 12531886 is 68813521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12531889) 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, 24865 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (1220625).

Almost surely, 2^12531886 is an apocalyptic number.

12531886 is a deficient number, since it is larger than the sum of its proper divisors (6998114).

12531886 is a wasteful number, since it uses less digits than its factorization.

12531886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963.

The product of its digits is 11520, while the sum is 34.

The square root of 12531886 is about 3540.0403952497. The cubic root of 12531886 is about 232.2766097269.

The spelling of 12531886 in words is "twelve million, five hundred thirty-one thousand, eight hundred eighty-six".