159813885 has 64 divisors (see below), whose sum is σ = 320993280. Its totient is φ = 65959680.

The previous prime is 159813869. The next prime is 159813893. The reversal of 159813885 is 588318951.

159813885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 159813885 - 2⁴ = 159813869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 206359 + ... + 207131.

It is an arithmetic number, because the mean of its divisors is an integer number (5015520).

Almost surely, 2^159813885 is an apocalyptic number.

159813885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

159813885 is an abundant number, since it is smaller than the sum of its proper divisors (161179395).

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

159813885 is a wasteful number, since it uses less digits than its factorization.

159813885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978.

The product of its digits is 345600, while the sum is 48.

The square root of 159813885 is about 12641.7516586903. The cubic root of 159813885 is about 542.6729442169.

The spelling of 159813885 in words is "one hundred fifty-nine million, eight hundred thirteen thousand, eight hundred eighty-five".