12132985 has 16 divisors (see below), whose sum is σ = 15498000. Its totient is φ = 9086976.

The previous prime is 12132971. The next prime is 12133013. The reversal of 12132985 is 58923121.

12132985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2223081 + 9909904 = 1491^2 + 3148^2 .

It is not a de Polignac number, because 12132985 - 2²¹ = 10035833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29461 + ... + 29869.

It is an arithmetic number, because the mean of its divisors is an integer number (968625).

Almost surely, 2^12132985 is an apocalyptic number.

It is an amenable number.

12132985 is a deficient number, since it is larger than the sum of its proper divisors (3365015).

12132985 is a wasteful number, since it uses less digits than its factorization.

12132985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780.

The product of its digits is 4320, while the sum is 31.

The square root of 12132985 is about 3483.2434597656. The cubic root of 12132985 is about 229.7854647282.

The spelling of 12132985 in words is "twelve million, one hundred thirty-two thousand, nine hundred eighty-five".