13309091 has 2 divisors, whose sum is σ = 13309092. Its totient is φ = 13309090.

The previous prime is 13309067. The next prime is 13309097. The reversal of 13309091 is 19090331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13309091 - 2¹⁸ = 13046947 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13309091.

It is not a weakly prime, because it can be changed into another prime (13309097) 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, 6654545 + 6654546.

It is an arithmetic number, because the mean of its divisors is an integer number (6654546).

Almost surely, 2^13309091 is an apocalyptic number.

13309091 is a deficient number, since it is larger than the sum of its proper divisors (1).

13309091 is an equidigital number, since it uses as much as digits as its factorization.

13309091 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 26.

The square root of 13309091 is about 3648.1626882583. The cubic root of 13309091 is about 236.9824207913.

The spelling of 13309091 in words is "thirteen million, three hundred nine thousand, ninety-one".