15109116 has 48 divisors (see below), whose sum is σ = 39795840. Its totient is φ = 4419520.

The previous prime is 15109109. The next prime is 15109139. The reversal of 15109116 is 61190151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1855 + ... + 5801.

It is an arithmetic number, because the mean of its divisors is an integer number (829080).

Almost surely, 2^15109116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15109116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19897920).

15109116 is an abundant number, since it is smaller than the sum of its proper divisors (24686724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15109116 is a wasteful number, since it uses less digits than its factorization.

15109116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994 (or 3992 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 24.

The square root of 15109116 is about 3887.0446357098. The cubic root of 15109116 is about 247.2177703211.

Adding to 15109116 its reverse (61190151), we get a palindrome (76299267).

It can be divided in two parts, 15109 and 116, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 15109116 in words is "fifteen million, one hundred nine thousand, one hundred sixteen".