159495986 has 32 divisors (see below), whose sum is σ = 265891248. Its totient is φ = 71285760.

The previous prime is 159495971. The next prime is 159496009. The reversal of 159495986 is 689594951.

It can be written as a sum of positive squares in 8 ways, for example, as 4020025 + 155475961 = 2005^2 + 12469^2 .

It is a super-3 number, since 3×159495986³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 166886 + ... + 167838.

Almost surely, 2^159495986 is an apocalyptic number.

159495986 is a deficient number, since it is larger than the sum of its proper divisors (106395262).

159495986 is a wasteful number, since it uses less digits than its factorization.

159495986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166.

The product of its digits is 3499200, while the sum is 56.

The square root of 159495986 is about 12629.1720235335. The cubic root of 159495986 is about 542.3128801733.

The spelling of 159495986 in words is "one hundred fifty-nine million, four hundred ninety-five thousand, nine hundred eighty-six".