159369728 has 80 divisors (see below), whose sum is σ = 371226240. Its totient is φ = 66932736.

The previous prime is 159369709. The next prime is 159369733. The reversal of 159369728 is 827963951.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189533 + ... + 190371.

It is an arithmetic number, because the mean of its divisors is an integer number (4640328).

Almost surely, 2^159369728 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 159369728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185613120).

159369728 is an abundant number, since it is smaller than the sum of its proper divisors (211856512).

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

159369728 is an frugal number, since it uses more digits than its factorization.

159369728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 901 counting only the distinct ones).

The product of its digits is 816480, while the sum is 50.

The square root of 159369728 is about 12624.1723689120. The cubic root of 159369728 is about 542.1697429974.

The spelling of 159369728 in words is "one hundred fifty-nine million, three hundred sixty-nine thousand, seven hundred twenty-eight".