15980172 has 24 divisors (see below), whose sum is σ = 40155696. Its totient is φ = 4916928.

The previous prime is 15980149. The next prime is 15980213. The reversal of 15980172 is 27108951.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51063 + ... + 51374.

It is an arithmetic number, because the mean of its divisors is an integer number (1673154).

Almost surely, 2^15980172 is an apocalyptic number.

15980172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15980172 is an abundant number, since it is smaller than the sum of its proper divisors (24175524).

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

15980172 is a wasteful number, since it uses less digits than its factorization.

15980172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102457 (or 102455 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 15980172 is about 3997.5207316536. The cubic root of 15980172 is about 251.8800764739.

The spelling of 15980172 in words is "fifteen million, nine hundred eighty thousand, one hundred seventy-two".