12401579 has 2 divisors, whose sum is σ = 12401580. Its totient is φ = 12401578.

The previous prime is 12401573. The next prime is 12401593. The reversal of 12401579 is 97510421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12401579 - 2⁴ = 12401563 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p₈₁₂₆₉₃ and since 12401579 and 812693 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12401573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200789 + 6200790.

It is an arithmetic number, because the mean of its divisors is an integer number (6200790).

Almost surely, 2^12401579 is an apocalyptic number.

12401579 is a deficient number, since it is larger than the sum of its proper divisors (1).

12401579 is an equidigital number, since it uses as much as digits as its factorization.

12401579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 12401579 is about 3521.5875681289. The cubic root of 12401579 is about 231.4687295951.

The spelling of 12401579 in words is "twelve million, four hundred one thousand, five hundred seventy-nine".