159239856 has 80 divisors (see below), whose sum is σ = 433972224. Its totient is φ = 50214912.

The previous prime is 159239851. The next prime is 159239863. The reversal of 159239856 is 658932951.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (159239851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106345 + ... + 107831.

Almost surely, 2^159239856 is an apocalyptic number.

159239856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159239856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216986112).

159239856 is an abundant number, since it is smaller than the sum of its proper divisors (274732368).

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

159239856 is a wasteful number, since it uses less digits than its factorization.

159239856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618 (or 1612 counting only the distinct ones).

The product of its digits is 583200, while the sum is 48.

The square root of 159239856 is about 12619.0275378097. The cubic root of 159239856 is about 542.0224297758.

The spelling of 159239856 in words is "one hundred fifty-nine million, two hundred thirty-nine thousand, eight hundred fifty-six".