12716009 has 2 divisors, whose sum is σ = 12716010. Its totient is φ = 12716008.

The previous prime is 12715993. The next prime is 12716023. The reversal of 12716009 is 90061721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6390784 + 6325225 = 2528^2 + 2515^2 .

It is a cyclic number.

It is not a de Polignac number, because 12716009 - 2⁴ = 12715993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12716059) 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, 6358004 + 6358005.

It is an arithmetic number, because the mean of its divisors is an integer number (6358005).

Almost surely, 2^12716009 is an apocalyptic number.

It is an amenable number.

12716009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12716009 is an equidigital number, since it uses as much as digits as its factorization.

12716009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 12716009 is about 3565.9513457141. The cubic root of 12716009 is about 233.4086475699.

The spelling of 12716009 in words is "twelve million, seven hundred sixteen thousand, nine".