12160909 has 4 divisors (see below), whose sum is σ = 12179200. Its totient is φ = 12142620.

The previous prime is 12160891. The next prime is 12160913. The reversal of 12160909 is 90906121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12160909 - 2⁷ = 12160781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12160979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8109 + ... + 9490.

It is an arithmetic number, because the mean of its divisors is an integer number (3044800).

Almost surely, 2^12160909 is an apocalyptic number.

It is an amenable number.

12160909 is a deficient number, since it is larger than the sum of its proper divisors (18291).

12160909 is an equidigital number, since it uses as much as digits as its factorization.

12160909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18290.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 12160909 is about 3487.2494892107. The cubic root of 12160909 is about 229.9616130013.

The spelling of 12160909 in words is "twelve million, one hundred sixty thousand, nine hundred nine".