11516579 has 2 divisors, whose sum is σ = 11516580. Its totient is φ = 11516578.

The previous prime is 11516569. The next prime is 11516581. The reversal of 11516579 is 97561511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11516579 is a prime.

It is a Sophie Germain prime.

Together with 11516581, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11516539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5758289 + 5758290.

It is an arithmetic number, because the mean of its divisors is an integer number (5758290).

Almost surely, 2^11516579 is an apocalyptic number.

11516579 is a deficient number, since it is larger than the sum of its proper divisors (1).

11516579 is an equidigital number, since it uses as much as digits as its factorization.

11516579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 35.

The square root of 11516579 is about 3393.6085513801. The cubic root of 11516579 is about 225.8262885775.

The spelling of 11516579 in words is "eleven million, five hundred sixteen thousand, five hundred seventy-nine".