13090309 has 2 divisors, whose sum is σ = 13090310. Its totient is φ = 13090308.

The previous prime is 13090303. The next prime is 13090331. The reversal of 13090309 is 90309031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10870209 + 2220100 = 3297^2 + 1490^2 .

It is an emirp because it is prime and its reverse (90309031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13090309 - 2¹¹ = 13088261 is a prime.

It is equal to p₈₅₄₇₁₀ and since 13090309 and 854710 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13090303) 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, 6545154 + 6545155.

It is an arithmetic number, because the mean of its divisors is an integer number (6545155).

Almost surely, 2^13090309 is an apocalyptic number.

It is an amenable number.

13090309 is a deficient number, since it is larger than the sum of its proper divisors (1).

13090309 is an equidigital number, since it uses as much as digits as its factorization.

13090309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 13090309 is about 3618.0532058000. The cubic root of 13090309 is about 235.6766914901.

The spelling of 13090309 in words is "thirteen million, ninety thousand, three hundred nine".