159271220 has 12 divisors (see below), whose sum is σ = 334469604. Its totient is φ = 63708480.

The previous prime is 159271213. The next prime is 159271289. The reversal of 159271220 is 22172951.

159271220 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 2 ways, for example, as 33965584 + 125305636 = 5828^2 + 11194^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3981761 + ... + 3981800.

It is an arithmetic number, because the mean of its divisors is an integer number (27872467).

Almost surely, 2^159271220 is an apocalyptic number.

159271220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159271220 is an abundant number, since it is smaller than the sum of its proper divisors (175198384).

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

159271220 is a wasteful number, since it uses less digits than its factorization.

159271220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963570 (or 7963568 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 159271220 is about 12620.2702031296. The cubic root of 159271220 is about 542.0580131528.

The spelling of 159271220 in words is "one hundred fifty-nine million, two hundred seventy-one thousand, two hundred twenty".