12013579 has 2 divisors, whose sum is σ = 12013580. Its totient is φ = 12013578.

The previous prime is 12013571. The next prime is 12013583. The reversal of 12013579 is 97531021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12013579 - 2³ = 12013571 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12013571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006789 + 6006790.

It is an arithmetic number, because the mean of its divisors is an integer number (6006790).

Almost surely, 2^12013579 is an apocalyptic number.

12013579 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013579 is an equidigital number, since it uses as much as digits as its factorization.

12013579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 12013579 is about 3466.0610208131. The cubic root of 12013579 is about 229.0291719287.

The spelling of 12013579 in words is "twelve million, thirteen thousand, five hundred seventy-nine".