13209013 has 2 divisors, whose sum is σ = 13209014. Its totient is φ = 13209012.

The previous prime is 13208981. The next prime is 13209019. The reversal of 13209013 is 31090231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9591409 + 3617604 = 3097^2 + 1902^2 .

It is an emirp because it is prime and its reverse (31090231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13209013 - 2⁵ = 13208981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13209019) 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, 6604506 + 6604507.

It is an arithmetic number, because the mean of its divisors is an integer number (6604507).

Almost surely, 2^13209013 is an apocalyptic number.

It is an amenable number.

13209013 is a deficient number, since it is larger than the sum of its proper divisors (1).

13209013 is an equidigital number, since it uses as much as digits as its factorization.

13209013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 13209013 is about 3634.4205865585. The cubic root of 13209013 is about 236.3869275192.

Adding to 13209013 its reverse (31090231), we get a palindrome (44299244).

The spelling of 13209013 in words is "thirteen million, two hundred nine thousand, thirteen".