159889 has 4 divisors (see below), whose sum is σ = 160740. Its totient is φ = 159040.

The previous prime is 159871. The next prime is 159899. The reversal of 159889 is 988951.

159889 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 65025 + 94864 = 255^2 + 308^2 .

It is a cyclic number.

It is not a de Polignac number, because 159889 - 2⁵ = 159857 is a prime.

It is a super-3 number, since 3×159889³ = 12262443338137107, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4 + ... + 565.

It is an arithmetic number, because the mean of its divisors is an integer number (40185).

2¹⁵⁹⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

159889 is a deficient number, since it is larger than the sum of its proper divisors (851).

159889 is an equidigital number, since it uses as much as digits as its factorization.

159889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850.

The product of its digits is 25920, while the sum is 40.

The square root of 159889 is about 399.8612259272. The cubic root of 159889 is about 54.2757952461.

The spelling of 159889 in words is "one hundred fifty-nine thousand, eight hundred eighty-nine".