12160891 has 2 divisors, whose sum is σ = 12160892. Its totient is φ = 12160890.

The previous prime is 12160853. The next prime is 12160913. The reversal of 12160891 is 19806121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12160891 - 2¹⁷ = 12029819 is a prime.

It is not a weakly prime, because it can be changed into another prime (12160801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6080445 + 6080446.

It is an arithmetic number, because the mean of its divisors is an integer number (6080446).

Almost surely, 2^12160891 is an apocalyptic number.

12160891 is a deficient number, since it is larger than the sum of its proper divisors (1).

12160891 is an equidigital number, since it uses as much as digits as its factorization.

12160891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 12160891 is about 3487.2469083792. The cubic root of 12160891 is about 229.9614995418.

The spelling of 12160891 in words is "twelve million, one hundred sixty thousand, eight hundred ninety-one".