12131185 has 16 divisors (see below), whose sum is σ = 15950592. Its totient is φ = 8784000.

The previous prime is 12131179. The next prime is 12131219. The reversal of 12131185 is 58113121.

It is not a de Polignac number, because 12131185 - 2⁷ = 12131057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19885 + ... + 20485.

It is an arithmetic number, because the mean of its divisors is an integer number (996912).

Almost surely, 2^12131185 is an apocalyptic number.

It is an amenable number.

12131185 is a deficient number, since it is larger than the sum of its proper divisors (3819407).

12131185 is a wasteful number, since it uses less digits than its factorization.

12131185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984.

The product of its digits is 240, while the sum is 22.

The square root of 12131185 is about 3482.9850703097. The cubic root of 12131185 is about 229.7741008225.

The spelling of 12131185 in words is "twelve million, one hundred thirty-one thousand, one hundred eighty-five".