13109817 has 8 divisors (see below), whose sum is σ = 19976896. Its totient is φ = 7491312.

The previous prime is 13109809. The next prime is 13109843. The reversal of 13109817 is 71890131.

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

It is not a de Polignac number, because 13109817 - 2³ = 13109809 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (13109897) 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, 312118 + ... + 312159.

It is an arithmetic number, because the mean of its divisors is an integer number (2497112).

Almost surely, 2^13109817 is an apocalyptic number.

It is an amenable number.

13109817 is a deficient number, since it is larger than the sum of its proper divisors (6867079).

13109817 is an equidigital number, since it uses as much as digits as its factorization.

13109817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624287.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 13109817 is about 3620.7481271141. The cubic root of 13109817 is about 235.7937067803.

Adding to 13109817 its reverse (71890131), we get a palindrome (84999948).

The spelling of 13109817 in words is "thirteen million, one hundred nine thousand, eight hundred seventeen".