159923 has 6 divisors (see below), whose sum is σ = 169164. Its totient is φ = 151164.

The previous prime is 159911. The next prime is 159931. The reversal of 159923 is 329951.

159923 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 159923 - 2⁸ = 159667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140 + ... + 582.

It is an arithmetic number, because the mean of its divisors is an integer number (28194).

2¹⁵⁹⁹²³ is an apocalyptic number.

159923 is a deficient number, since it is larger than the sum of its proper divisors (9241).

159923 is an equidigital number, since it uses as much as digits as its factorization.

159923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 462 counting only the distinct ones).

The product of its digits is 2430, while the sum is 29.

The square root of 159923 is about 399.9037384171. The cubic root of 159923 is about 54.2796421780.

The spelling of 159923 in words is "one hundred fifty-nine thousand, nine hundred twenty-three".