159936689 has 8 divisors (see below), whose sum is σ = 174715968. Its totient is φ = 145197360.

The previous prime is 159936683. The next prime is 159936691. The reversal of 159936689 is 986639951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-159936689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159936683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1277 + ... + 17930.

It is an arithmetic number, because the mean of its divisors is an integer number (21839496).

Almost surely, 2^159936689 is an apocalyptic number.

It is an amenable number.

159936689 is a deficient number, since it is larger than the sum of its proper divisors (14779279).

159936689 is a wasteful number, since it uses less digits than its factorization.

159936689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19975.

The product of its digits is 3149280, while the sum is 56.

The square root of 159936689 is about 12646.6078060482. The cubic root of 159936689 is about 542.8119086666.

The spelling of 159936689 in words is "one hundred fifty-nine million, nine hundred thirty-six thousand, six hundred eighty-nine".