159889128 has 64 divisors (see below), whose sum is σ = 465471360. Its totient is φ = 44818176.

The previous prime is 159889111. The next prime is 159889139. The reversal of 159889128 is 821988951.

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, 75 + ... + 17882.

It is an arithmetic number, because the mean of its divisors is an integer number (7272990).

Almost surely, 2^159889128 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 159889128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232735680).

159889128 is an abundant number, since it is smaller than the sum of its proper divisors (305582232).

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

159889128 is a wasteful number, since it uses less digits than its factorization.

159889128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18026 (or 18022 counting only the distinct ones).

The product of its digits is 414720, while the sum is 51.

The square root of 159889128 is about 12644.7272805703. The cubic root of 159889128 is about 542.7580972974.

The spelling of 159889128 in words is "one hundred fifty-nine million, eight hundred eighty-nine thousand, one hundred twenty-eight".