159929489 has 4 divisors (see below), whose sum is σ = 169337124. Its totient is φ = 150521856.

The previous prime is 159929459. The next prime is 159929509. The reversal of 159929489 is 984929951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 984929951 = 4801 ⋅205151.

It can be written as a sum of positive squares in 2 ways, for example, as 104203264 + 55726225 = 10208^2 + 7465^2 .

It is a cyclic number.

It is not a de Polignac number, because 159929489 - 2¹² = 159925393 is a prime.

It is a super-2 number, since 2×159929489² = 51154882903602242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159929459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4703792 + ... + 4703825.

It is an arithmetic number, because the mean of its divisors is an integer number (42334281).

Almost surely, 2^159929489 is an apocalyptic number.

It is an amenable number.

159929489 is a deficient number, since it is larger than the sum of its proper divisors (9407635).

159929489 is an equidigital number, since it uses as much as digits as its factorization.

159929489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9407634.

The product of its digits is 2099520, while the sum is 56.

The square root of 159929489 is about 12646.3231415301. The cubic root of 159929489 is about 542.8037631427.

The spelling of 159929489 in words is "one hundred fifty-nine million, nine hundred twenty-nine thousand, four hundred eighty-nine".