159540 has 24 divisors (see below), whose sum is σ = 446880. Its totient is φ = 42528.

The previous prime is 159539. The next prime is 159541. The reversal of 159540 is 45951.

It is an interprime number because it is at equal distance from previous prime (159539) and next prime (159541).

It is a self number, because there is not a number n which added to its sum of digits gives 159540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1270 + ... + 1389.

It is an arithmetic number, because the mean of its divisors is an integer number (18620).

2¹⁵⁹⁵⁴⁰ is an apocalyptic number.

159540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159540 is an abundant number, since it is smaller than the sum of its proper divisors (287340).

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

159540 is a wasteful number, since it uses less digits than its factorization.

159540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671 (or 2669 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 159540 is about 399.4245861236. The cubic root of 159540 is about 54.2362760559.

The spelling of 159540 in words is "one hundred fifty-nine thousand, five hundred forty".