159831 has 24 divisors (see below), whose sum is σ = 274560. Its totient is φ = 87696.

The previous prime is 159811. The next prime is 159833. The reversal of 159831 is 138951.

159831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 159831 - 2⁵ = 159799 is a prime.

It is a super-2 number, since 2×159831² = 51091897122, which contains 22 as substring.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 159795 and 159804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2680 + ... + 2738.

It is an arithmetic number, because the mean of its divisors is an integer number (11440).

2¹⁵⁹⁸³¹ is an apocalyptic number.

159831 is a deficient number, since it is larger than the sum of its proper divisors (114729).

159831 is a wasteful number, since it uses less digits than its factorization.

159831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 112 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 159831 is about 399.7886941873. The cubic root of 159831 is about 54.2692315742.

It can be divided in two parts, 159 and 831, that added together give a triangular number (990 = T₄₄).

The spelling of 159831 in words is "one hundred fifty-nine thousand, eight hundred thirty-one".