159400 has 24 divisors (see below), whose sum is σ = 371070. Its totient is φ = 63680.

The previous prime is 159389. The next prime is 159403. The reversal of 159400 is 4951.

159400 = T₂₄ + T₂₅ + ... + T₉₈.

159400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 116964 + 42436 = 342^2 + 206^2 .

It is not an unprimeable number, because it can be changed into a prime (159403) 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, 199 + ... + 598.

2¹⁵⁹⁴⁰⁰ is an apocalyptic number.

159400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

159400 is the 200-th decagonal number.

It is an amenable number.

159400 is an abundant number, since it is smaller than the sum of its proper divisors (211670).

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

159400 is a wasteful number, since it uses less digits than its factorization.

159400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 159400 is about 399.2492955535. The cubic root of 159400 is about 54.2204068888.

Subtracting from 159400 its reverse (4951), we obtain a square (154449 = 393²).

The spelling of 159400 in words is "one hundred fifty-nine thousand, four hundred".