12531885 has 8 divisors (see below), whose sum is σ = 20051040. Its totient is φ = 6683664.

The previous prime is 12531859. The next prime is 12531889. The reversal of 12531885 is 58813521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12531885 - 2¹¹ = 12529837 is a prime.

It is a Curzon number.

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, 417715 + ... + 417744.

It is an arithmetic number, because the mean of its divisors is an integer number (2506380).

Almost surely, 2^12531885 is an apocalyptic number.

12531885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12531885 is a deficient number, since it is larger than the sum of its proper divisors (7519155).

12531885 is an equidigital number, since it uses as much as digits as its factorization.

12531885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835467.

The product of its digits is 9600, while the sum is 33.

The square root of 12531885 is about 3540.0402540084. The cubic root of 12531885 is about 232.2766035487.

The spelling of 12531885 in words is "twelve million, five hundred thirty-one thousand, eight hundred eighty-five".