159209868 has 24 divisors (see below), whose sum is σ = 379395072. Its totient is φ = 51940624.

The previous prime is 159209849. The next prime is 159209917. The reversal of 159209868 is 868902951.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140580 + ... + 141707.

It is an arithmetic number, because the mean of its divisors is an integer number (15808128).

Almost surely, 2^159209868 is an apocalyptic number.

It is an amenable number.

159209868 is an abundant number, since it is smaller than the sum of its proper divisors (220185204).

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

159209868 is a wasteful number, since it uses less digits than its factorization.

159209868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282341 (or 282339 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 159209868 is about 12617.8392761994. The cubic root of 159209868 is about 541.9884031414.

The spelling of 159209868 in words is "one hundred fifty-nine million, two hundred nine thousand, eight hundred sixty-eight".