12585131 has 8 divisors (see below), whose sum is σ = 13580784. Its totient is φ = 11593440.

The previous prime is 12585121. The next prime is 12585137. The reversal of 12585131 is 13158521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12585131 - 2¹⁸ = 12322987 is a prime.

It is a super-2 number, since 2×12585131² = 316771044574322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12585131.

It is not an unprimeable number, because it can be changed into a prime (12585137) 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, 12125 + ... + 13121.

It is an arithmetic number, because the mean of its divisors is an integer number (1697598).

Almost surely, 2^12585131 is an apocalyptic number.

12585131 is a deficient number, since it is larger than the sum of its proper divisors (995653).

12585131 is an equidigital number, since it uses as much as digits as its factorization.

12585131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981.

The product of its digits is 1200, while the sum is 26.

The square root of 12585131 is about 3547.5528184933. The cubic root of 12585131 is about 232.6051076002.

The spelling of 12585131 in words is "twelve million, five hundred eighty-five thousand, one hundred thirty-one".