159857018 has 16 divisors (see below), whose sum is σ = 262082304. Its totient is φ = 72799680.

The previous prime is 159856999. The next prime is 159857023. The reversal of 159857018 is 810758951.

It is a happy number.

159857018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 159857018.

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, 74780 + ... + 76887.

It is an arithmetic number, because the mean of its divisors is an integer number (16380144).

Almost surely, 2^159857018 is an apocalyptic number.

159857018 is a deficient number, since it is larger than the sum of its proper divisors (102225286).

159857018 is a wasteful number, since it uses less digits than its factorization.

159857018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151717.

The product of its (nonzero) digits is 100800, while the sum is 44.

The square root of 159857018 is about 12643.4575176255. The cubic root of 159857018 is about 542.7217614324.

The spelling of 159857018 in words is "one hundred fifty-nine million, eight hundred fifty-seven thousand, eighteen".