159728 has 20 divisors (see below), whose sum is σ = 316200. Its totient is φ = 78144.

The previous prime is 159721. The next prime is 159737. The reversal of 159728 is 827951.

It is a junction number, because it is equal to n+sod(n) for n = 159694 and 159703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 998 + ... + 1146.

It is an arithmetic number, because the mean of its divisors is an integer number (15810).

2¹⁵⁹⁷²⁸ is an apocalyptic number.

It is an amenable number.

159728 is a deficient number, since it is larger than the sum of its proper divisors (156472).

159728 is a wasteful number, since it uses less digits than its factorization.

159728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 218 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 159728 is about 399.6598553770. The cubic root of 159728 is about 54.2575714832.

The spelling of 159728 in words is "one hundred fifty-nine thousand, seven hundred twenty-eight".