12166579 has 2 divisors, whose sum is σ = 12166580. Its totient is φ = 12166578.

The previous prime is 12166547. The next prime is 12166589. The reversal of 12166579 is 97566121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12166579 - 2⁵ = 12166547 is a prime.

It is not a weakly prime, because it can be changed into another prime (12166529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6083289 + 6083290.

It is an arithmetic number, because the mean of its divisors is an integer number (6083290).

Almost surely, 2^12166579 is an apocalyptic number.

12166579 is a deficient number, since it is larger than the sum of its proper divisors (1).

12166579 is an equidigital number, since it uses as much as digits as its factorization.

12166579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 12166579 is about 3488.0623560940. The cubic root of 12166579 is about 229.9973471654.

The spelling of 12166579 in words is "twelve million, one hundred sixty-six thousand, five hundred seventy-nine".