159015220 has 96 divisors (see below), whose sum is σ = 421214976. Its totient is φ = 49075200.

The previous prime is 159015217. The next prime is 159015223. The reversal of 159015220 is 22510951.

It is an interprime number because it is at equal distance from previous prime (159015217) and next prime (159015223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159015223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73555 + ... + 75685.

It is an arithmetic number, because the mean of its divisors is an integer number (4387656).

Almost surely, 2^159015220 is an apocalyptic number.

159015220 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 159015220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210607488).

159015220 is an abundant number, since it is smaller than the sum of its proper divisors (262199756).

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

159015220 is a wasteful number, since it uses less digits than its factorization.

159015220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201 (or 2199 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 159015220 is about 12610.1237107334. The cubic root of 159015220 is about 541.7674369783.

The spelling of 159015220 in words is "one hundred fifty-nine million, fifteen thousand, two hundred twenty".