159804 has 36 divisors (see below), whose sum is σ = 423696. Its totient is φ = 50688.

The previous prime is 159799. The next prime is 159811. The reversal of 159804 is 408951.

159804 is nontrivially palindromic in base 8.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

159804 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 732 + ... + 924.

2¹⁵⁹⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211848).

159804 is an abundant number, since it is smaller than the sum of its proper divisors (263892).

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

159804 is a wasteful number, since it uses less digits than its factorization.

159804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 159804 is about 399.7549249228. The cubic root of 159804 is about 54.2661755300.

The spelling of 159804 in words is "one hundred fifty-nine thousand, eight hundred four".