158859 has 12 divisors (see below), whose sum is σ = 241800. Its totient is φ = 100224.

The previous prime is 158849. The next prime is 158863. The reversal of 158859 is 958851.

158859 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 158859 - 2⁴ = 158843 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (158849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294 + ... + 635.

It is an arithmetic number, because the mean of its divisors is an integer number (20150).

2¹⁵⁸⁸⁵⁹ is an apocalyptic number.

158859 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

158859 is a deficient number, since it is larger than the sum of its proper divisors (82941).

158859 is a wasteful number, since it uses less digits than its factorization.

158859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954 (or 951 counting only the distinct ones).

The product of its digits is 14400, while the sum is 36.

The square root of 158859 is about 398.5711981566. The cubic root of 158859 is about 54.1589964156.

The spelling of 158859 in words is "one hundred fifty-eight thousand, eight hundred fifty-nine".