12916559 has 2 divisors, whose sum is σ = 12916560. Its totient is φ = 12916558.

The previous prime is 12916529. The next prime is 12916619. The reversal of 12916559 is 95561921.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12916559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12916529) 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, 6458279 + 6458280.

It is an arithmetic number, because the mean of its divisors is an integer number (6458280).

Almost surely, 2^12916559 is an apocalyptic number.

12916559 is a deficient number, since it is larger than the sum of its proper divisors (1).

12916559 is an equidigital number, since it uses as much as digits as its factorization.

12916559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 38.

The square root of 12916559 is about 3593.9614633438. The cubic root of 12916559 is about 234.6293175196.

The spelling of 12916559 in words is "twelve million, nine hundred sixteen thousand, five hundred fifty-nine".