15980115 has 16 divisors (see below), whose sum is σ = 26260128. Its totient is φ = 8292096.

The previous prime is 15980099. The next prime is 15980117. The reversal of 15980115 is 51108951.

It is not a de Polignac number, because 15980115 - 2⁴ = 15980099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15980117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13842 + ... + 14951.

It is an arithmetic number, because the mean of its divisors is an integer number (1641258).

Almost surely, 2^15980115 is an apocalyptic number.

15980115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15980115 is a deficient number, since it is larger than the sum of its proper divisors (10280013).

15980115 is a wasteful number, since it uses less digits than its factorization.

15980115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28838.

The product of its (nonzero) digits is 1800, while the sum is 30.

The square root of 15980115 is about 3997.5136022283. The cubic root of 15980115 is about 251.8797769948.

The spelling of 15980115 in words is "fifteen million, nine hundred eighty thousand, one hundred fifteen".