159855 has 8 divisors (see below), whose sum is σ = 255792. Its totient is φ = 85248.

The previous prime is 159853. The next prime is 159857. The reversal of 159855 is 558951.

It is an interprime number because it is at equal distance from previous prime (159853) and next prime (159857).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 159855 - 2¹ = 159853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159853) 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, 5314 + ... + 5343.

It is an arithmetic number, because the mean of its divisors is an integer number (31974).

2¹⁵⁹⁸⁵⁵ is an apocalyptic number.

159855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

159855 is a deficient number, since it is larger than the sum of its proper divisors (95937).

159855 is a wasteful number, since it uses less digits than its factorization.

159855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10665.

The product of its digits is 9000, while the sum is 33.

The square root of 159855 is about 399.8187089169. The cubic root of 159855 is about 54.2719477689.

It can be divided in two parts, 1598 and 55, that added together give a triangular number (1653 = T₅₇).

The spelling of 159855 in words is "one hundred fifty-nine thousand, eight hundred fifty-five".