13370309 has 2 divisors, whose sum is σ = 13370310. Its totient is φ = 13370308.

The previous prime is 13370297. The next prime is 13370311. The reversal of 13370309 is 90307331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 1329409 = 3470^2 + 1153^2 .

It is an emirp because it is prime and its reverse (90307331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13370309 - 2⁴ = 13370293 is a prime.

Together with 13370311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13370339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6685154 + 6685155.

It is an arithmetic number, because the mean of its divisors is an integer number (6685155).

Almost surely, 2^13370309 is an apocalyptic number.

It is an amenable number.

13370309 is a deficient number, since it is larger than the sum of its proper divisors (1).

13370309 is an equidigital number, since it uses as much as digits as its factorization.

13370309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 13370309 is about 3656.5433130212. The cubic root of 13370309 is about 237.3452154886.

The spelling of 13370309 in words is "thirteen million, three hundred seventy thousand, three hundred nine".