159876 has 18 divisors (see below), whose sum is σ = 404222. Its totient is φ = 53280.

The previous prime is 159871. The next prime is 159899. The reversal of 159876 is 678951.

It can be written as a sum of positive squares in only one way, i.e., 129600 + 30276 = 360^2 + 174^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4441 = 159876 / (1 + 5 + 9 + 8 + 7 + 6).

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 159876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159871) by changing a digit.

159876 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 5 ways as a sum of consecutive naturals, for example, 2185 + ... + 2256.

2¹⁵⁹⁸⁷⁶ is an apocalyptic number.

It is an amenable number.

159876 is an abundant number, since it is smaller than the sum of its proper divisors (244346).

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

159876 is a wasteful number, since it uses less digits than its factorization.

159876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451 (or 4446 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 159876 is about 399.8449699571. The cubic root of 159876 is about 54.2743242163.

It can be divided in two parts, 159 and 876, that added together give a triangular number (1035 = T₄₅).

The spelling of 159876 in words is "one hundred fifty-nine thousand, eight hundred seventy-six".