159558 has 32 divisors (see below), whose sum is σ = 380160. Its totient is φ = 43680.

The previous prime is 159553. The next prime is 159563. The reversal of 159558 is 855951.

159558 is nontrivially palindromic in base 15.

It is an interprime number because it is at equal distance from previous prime (159553) and next prime (159563).

It is a Curzon number.

It is a nialpdrome in base 11 and base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153 + ... + 1283.

It is an arithmetic number, because the mean of its divisors is an integer number (11880).

2¹⁵⁹⁵⁵⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190080).

159558 is an abundant number, since it is smaller than the sum of its proper divisors (220602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159558 is a wasteful number, since it uses less digits than its factorization.

159558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172.

The product of its digits is 9000, while the sum is 33.

The square root of 159558 is about 399.4471179017. The cubic root of 159558 is about 54.2383157037.

It can be divided in two parts, 1595 and 58, that added together give a triangular number (1653 = T₅₇).

The spelling of 159558 in words is "one hundred fifty-nine thousand, five hundred fifty-eight".