159909252 has 24 divisors (see below), whose sum is σ = 373711296. Its totient is φ = 53218848.

The previous prime is 159909229. The next prime is 159909257. The reversal of 159909252 is 252909951.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (159909257) 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, 2368 + ... + 18039.

It is an arithmetic number, because the mean of its divisors is an integer number (15571304).

Almost surely, 2^159909252 is an apocalyptic number.

159909252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

159909252 is an abundant number, since it is smaller than the sum of its proper divisors (213802044).

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

159909252 is a wasteful number, since it uses less digits than its factorization.

159909252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21067 (or 21065 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 159909252 is about 12645.5230022328. The cubic root of 159909252 is about 542.7808672544.

The spelling of 159909252 in words is "one hundred fifty-nine million, nine hundred nine thousand, two hundred fifty-two".