12108985 has 32 divisors (see below), whose sum is σ = 17740800. Its totient is φ = 7750080.

The previous prime is 12108961. The next prime is 12109007. The reversal of 12108985 is 58980121.

12108985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12108985 - 2¹³ = 12100793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12108985.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87046 + ... + 87184.

It is an arithmetic number, because the mean of its divisors is an integer number (554400).

Almost surely, 2^12108985 is an apocalyptic number.

It is an amenable number.

12108985 is a deficient number, since it is larger than the sum of its proper divisors (5631815).

12108985 is a wasteful number, since it uses less digits than its factorization.

12108985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 12108985 is about 3479.7966894633. The cubic root of 12108985 is about 229.6338534683.

The spelling of 12108985 in words is "twelve million, one hundred eight thousand, nine hundred eighty-five".