15280116 has 12 divisors (see below), whose sum is σ = 35653632. Its totient is φ = 5093368.

The previous prime is 15280103. The next prime is 15280147. The reversal of 15280116 is 61108251.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636660 + ... + 636683.

It is an arithmetic number, because the mean of its divisors is an integer number (2971136).

Almost surely, 2^15280116 is an apocalyptic number.

It is an amenable number.

15280116 is an abundant number, since it is smaller than the sum of its proper divisors (20373516).

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

15280116 is a wasteful number, since it uses less digits than its factorization.

15280116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273350 (or 1273348 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 15280116 is about 3908.9788948010. The cubic root of 15280116 is about 248.1469169371.

Adding to 15280116 its reverse (61108251), we get a palindrome (76388367).

The spelling of 15280116 in words is "fifteen million, two hundred eighty thousand, one hundred sixteen".