159904018 has 16 divisors (see below), whose sum is σ = 249081336. Its totient is φ = 76930560.

The previous prime is 159904007. The next prime is 159904033. The reversal of 159904018 is 810409951.

It can be written as a sum of positive squares in 4 ways, for example, as 143928009 + 15976009 = 11997^2 + 3997^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7371 + ... + 19342.

Almost surely, 2^159904018 is an apocalyptic number.

159904018 is a deficient number, since it is larger than the sum of its proper divisors (89177318).

159904018 is a wasteful number, since it uses less digits than its factorization.

159904018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26829.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 159904018 is about 12645.3160498265. The cubic root of 159904018 is about 542.7749452580.

The spelling of 159904018 in words is "one hundred fifty-nine million, nine hundred four thousand, eighteen".