13010909 has 2 divisors, whose sum is σ = 13010910. Its totient is φ = 13010908.

The previous prime is 13010891. The next prime is 13010911. The reversal of 13010909 is 90901031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12996025 + 14884 = 3605^2 + 122^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13010909 is a prime.

It is a Sophie Germain prime.

Together with 13010911, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13010929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6505454 + 6505455.

It is an arithmetic number, because the mean of its divisors is an integer number (6505455).

Almost surely, 2^13010909 is an apocalyptic number.

It is an amenable number.

13010909 is a deficient number, since it is larger than the sum of its proper divisors (1).

13010909 is an equidigital number, since it uses as much as digits as its factorization.

13010909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 13010909 is about 3607.0637643380. The cubic root of 13010909 is about 235.1992214349.

The spelling of 13010909 in words is "thirteen million, ten thousand, nine hundred nine".