15117109 has 8 divisors (see below), whose sum is σ = 17384000. Its totient is φ = 12877056.

The previous prime is 15117083. The next prime is 15117133. The reversal of 15117109 is 90171151.

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 15117109 - 2⁹ = 15116597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15117169) 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, 5484 + ... + 7765.

It is an arithmetic number, because the mean of its divisors is an integer number (2173000).

Almost surely, 2^15117109 is an apocalyptic number.

It is an amenable number.

15117109 is a deficient number, since it is larger than the sum of its proper divisors (2266891).

15117109 is a wasteful number, since it uses less digits than its factorization.

15117109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13419.

The product of its (nonzero) digits is 315, while the sum is 25.

The square root of 15117109 is about 3888.0726587861. The cubic root of 15117109 is about 247.2613568837.

The spelling of 15117109 in words is "fifteen million, one hundred seventeen thousand, one hundred nine".