13318109 has 16 divisors (see below), whose sum is σ = 15630336. Its totient is φ = 11113200.

The previous prime is 13318103. The next prime is 13318111. The reversal of 13318109 is 90181331.

It is not a de Polignac number, because 13318109 - 2⁴ = 13318093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13318103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63014 + ... + 63224.

It is an arithmetic number, because the mean of its divisors is an integer number (976896).

Almost surely, 2^13318109 is an apocalyptic number.

It is an amenable number.

13318109 is a deficient number, since it is larger than the sum of its proper divisors (2312227).

13318109 is a wasteful number, since it uses less digits than its factorization.

13318109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 13318109 is about 3649.3984435794. The cubic root of 13318109 is about 237.0359337113.

The spelling of 13318109 in words is "thirteen million, three hundred eighteen thousand, one hundred nine".