159081 has 8 divisors (see below), whose sum is σ = 228480. Its totient is φ = 97872.

The previous prime is 159079. The next prime is 159097. The reversal of 159081 is 180951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 159081 - 2¹ = 159079 is a prime.

It is a super-2 number, since 2×159081² = 50613529122, which contains 22 as substring.

159081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (152081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2001 + ... + 2078.

It is an arithmetic number, because the mean of its divisors is an integer number (28560).

2¹⁵⁹⁰⁸¹ is an apocalyptic number.

It is an amenable number.

159081 is a deficient number, since it is larger than the sum of its proper divisors (69399).

159081 is a wasteful number, since it uses less digits than its factorization.

159081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 159081 is about 398.8495957125. The cubic root of 159081 is about 54.1842131189.

The spelling of 159081 in words is "one hundred fifty-nine thousand, eighty-one".