159085 has 4 divisors (see below), whose sum is σ = 190908. Its totient is φ = 127264.

The previous prime is 159079. The next prime is 159097. The reversal of 159085 is 580951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104329 + 54756 = 323^2 + 234^2 .

It is a cyclic number.

It is not a de Polignac number, because 159085 - 2⁹ = 158573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 15904 + ... + 15913.

It is an arithmetic number, because the mean of its divisors is an integer number (47727).

2¹⁵⁹⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

159085 is a deficient number, since it is larger than the sum of its proper divisors (31823).

159085 is an equidigital number, since it uses as much as digits as its factorization.

159085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31822.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 159085 is about 398.8546101025. The cubic root of 159085 is about 54.1846672587.

The spelling of 159085 in words is "one hundred fifty-nine thousand, eighty-five".