15989113 has 8 divisors (see below), whose sum is σ = 18297728. Its totient is φ = 13686624.

The previous prime is 15989021. The next prime is 15989119. The reversal of 15989113 is 31198951.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15989113 - 2²¹ = 13891961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15989119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8245 + ... + 9997.

It is an arithmetic number, because the mean of its divisors is an integer number (2287216).

Almost surely, 2^15989113 is an apocalyptic number.

It is an amenable number.

15989113 is a deficient number, since it is larger than the sum of its proper divisors (2308615).

15989113 is a wasteful number, since it uses less digits than its factorization.

15989113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063.

The product of its digits is 9720, while the sum is 37.

The square root of 15989113 is about 3998.6388934236. The cubic root of 15989113 is about 251.9270438424.

The spelling of 15989113 in words is "fifteen million, nine hundred eighty-nine thousand, one hundred thirteen".