12579841 has 2 divisors, whose sum is σ = 12579842. Its totient is φ = 12579840.

The previous prime is 12579821. The next prime is 12579859. The reversal of 12579841 is 14897521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12215025 + 364816 = 3495^2 + 604^2 .

It is an emirp because it is prime and its reverse (14897521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12579841 - 2⁷ = 12579713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12579841.

It is not a weakly prime, because it can be changed into another prime (12579811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6289920 + 6289921.

It is an arithmetic number, because the mean of its divisors is an integer number (6289921).

Almost surely, 2^12579841 is an apocalyptic number.

It is an amenable number.

12579841 is a deficient number, since it is larger than the sum of its proper divisors (1).

12579841 is an equidigital number, since it uses as much as digits as its factorization.

12579841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 37.

The square root of 12579841 is about 3546.8071557388. The cubic root of 12579841 is about 232.5725121650.

The spelling of 12579841 in words is "twelve million, five hundred seventy-nine thousand, eight hundred forty-one".