159271920 has 140 divisors (see below), whose sum is σ = 555410136. Its totient is φ = 42456960.

The previous prime is 159271909. The next prime is 159271949. The reversal of 159271920 is 29172951.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 56955 + ... + 59685.

Almost surely, 2^159271920 is an apocalyptic number.

159271920 is a gapful number since it is divisible by the number (10) 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 159271920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277705068).

159271920 is an abundant number, since it is smaller than the sum of its proper divisors (396138216).

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

159271920 is an equidigital number, since it uses as much as digits as its factorization.

159271920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762 (or 2741 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 159271920 is about 12620.2979362613. The cubic root of 159271920 is about 542.0588072700.

The spelling of 159271920 in words is "one hundred fifty-nine million, two hundred seventy-one thousand, nine hundred twenty".