13270309 has 16 divisors (see below), whose sum is σ = 15015168. Its totient is φ = 11644992.

The previous prime is 13270307. The next prime is 13270331. The reversal of 13270309 is 90307231.

It is a cyclic number.

It is not a de Polignac number, because 13270309 - 2¹ = 13270307 is a prime.

It is a super-2 number, since 2×13270309² = 352202201910962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13270307) 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 in 15 ways as a sum of consecutive naturals, for example, 22314 + ... + 22900.

It is an arithmetic number, because the mean of its divisors is an integer number (938448).

Almost surely, 2^13270309 is an apocalyptic number.

It is an amenable number.

13270309 is a deficient number, since it is larger than the sum of its proper divisors (1744859).

13270309 is a wasteful number, since it uses less digits than its factorization.

13270309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 13270309 is about 3642.8435321875. The cubic root of 13270309 is about 236.7520120241.

The spelling of 13270309 in words is "thirteen million, two hundred seventy thousand, three hundred nine".