13319309 has 4 divisors (see below), whose sum is σ = 13545120. Its totient is φ = 13093500.

The previous prime is 13319303. The next prime is 13319311. The reversal of 13319309 is 90391331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13319309 - 2²⁰ = 12270733 is a prime.

It is a super-3 number, since 3×13319309³ (a number of 22 digits) contains 333 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 (13319303) 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 3 ways as a sum of consecutive naturals, for example, 112817 + ... + 112934.

It is an arithmetic number, because the mean of its divisors is an integer number (3386280).

Almost surely, 2^13319309 is an apocalyptic number.

It is an amenable number.

13319309 is a deficient number, since it is larger than the sum of its proper divisors (225811).

13319309 is an equidigital number, since it uses as much as digits as its factorization.

13319309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225810.

The product of its (nonzero) digits is 2187, while the sum is 29.

The square root of 13319309 is about 3649.5628505343. The cubic root of 13319309 is about 237.0430527044.

The spelling of 13319309 in words is "thirteen million, three hundred nineteen thousand, three hundred nine".