159123 has 16 divisors (see below), whose sum is σ = 230400. Its totient is φ = 97440.

The previous prime is 159119. The next prime is 159157. The reversal of 159123 is 321951.

It is not a de Polignac number, because 159123 - 2² = 159119 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 159123.

It is not an unprimeable number, because it can be changed into a prime (159113) 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, 2668 + ... + 2726.

It is an arithmetic number, because the mean of its divisors is an integer number (14400).

2¹⁵⁹¹²³ is an apocalyptic number.

159123 is a deficient number, since it is larger than the sum of its proper divisors (71277).

159123 is a wasteful number, since it uses less digits than its factorization.

159123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122.

The product of its digits is 270, while the sum is 21.

The square root of 159123 is about 398.9022436638. The cubic root of 159123 is about 54.1889812071.

It can be divided in two parts, 159 and 123, that added together give a palindrome (282).

The spelling of 159123 in words is "one hundred fifty-nine thousand, one hundred twenty-three".