13013309 has 8 divisors (see below), whose sum is σ = 13808640. Its totient is φ = 12229056.

The previous prime is 13013303. The next prime is 13013317. The reversal of 13013309 is 90331031.

13013309 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13013309 - 2⁴ = 13013293 is a prime.

It is a super-2 number, since 2×13013309² = 338692422258962, 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 (13013303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284 + ... + 5109.

It is an arithmetic number, because the mean of its divisors is an integer number (1726080).

Almost surely, 2^13013309 is an apocalyptic number.

13013309 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13013309 is a deficient number, since it is larger than the sum of its proper divisors (795331).

13013309 is a wasteful number, since it uses less digits than its factorization.

13013309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5539.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 13013309 is about 3607.3964295597. The cubic root of 13013309 is about 235.2136822084.

The spelling of 13013309 in words is "thirteen million, thirteen thousand, three hundred nine".