159728289 has 12 divisors (see below), whose sum is σ = 247742064. Its totient is φ = 91273224.

The previous prime is 159728249. The next prime is 159728329. The reversal of 159728289 is 982827951.

It is an interprime number because it is at equal distance from previous prime (159728249) and next prime (159728329).

It is not a de Polignac number, because 159728289 - 2¹¹ = 159726241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159728249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 543147 + ... + 543440.

It is an arithmetic number, because the mean of its divisors is an integer number (20645172).

Almost surely, 2^159728289 is an apocalyptic number.

It is an amenable number.

159728289 is a deficient number, since it is larger than the sum of its proper divisors (88013775).

159728289 is a wasteful number, since it uses less digits than its factorization.

159728289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086604 (or 1086597 counting only the distinct ones).

The product of its digits is 725760, while the sum is 51.

The square root of 159728289 is about 12638.3657566950. The cubic root of 159728289 is about 542.5760420636.

The spelling of 159728289 in words is "one hundred fifty-nine million, seven hundred twenty-eight thousand, two hundred eighty-nine".