15138116 has 48 divisors (see below), whose sum is σ = 31799040. Its totient is φ = 6168960.

The previous prime is 15138103. The next prime is 15138127. The reversal of 15138116 is 61183151.

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, 83546 + ... + 83726.

It is an arithmetic number, because the mean of its divisors is an integer number (662480).

Almost surely, 2^15138116 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 15138116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15899520).

15138116 is an abundant number, since it is smaller than the sum of its proper divisors (16660924).

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

15138116 is a wasteful number, since it uses less digits than its factorization.

15138116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 322 counting only the distinct ones).

The product of its digits is 720, while the sum is 26.

The square root of 15138116 is about 3890.7731879409. The cubic root of 15138116 is about 247.3758367794.

The spelling of 15138116 in words is "fifteen million, one hundred thirty-eight thousand, one hundred sixteen".