13013809 has 8 divisors (see below), whose sum is σ = 13204800. Its totient is φ = 12824496.

The previous prime is 13013773. The next prime is 13013813. The reversal of 13013809 is 90831031.

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 13013809 - 2⁷ = 13013681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13013839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24622 + ... + 25144.

It is an arithmetic number, because the mean of its divisors is an integer number (1650600).

Almost surely, 2^13013809 is an apocalyptic number.

It is an amenable number.

13013809 is a deficient number, since it is larger than the sum of its proper divisors (190991).

13013809 is a wasteful number, since it uses less digits than its factorization.

13013809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 13013809 is about 3607.4657309530. The cubic root of 13013809 is about 235.2166946458.

The spelling of 13013809 in words is "thirteen million, thirteen thousand, eight hundred nine".