159159172 has 18 divisors (see below), whose sum is σ = 291168878. Its totient is φ = 76118592.

The previous prime is 159159157. The next prime is 159159179. The reversal of 159159172 is 271951951.

It can be written as a sum of positive squares in only one way, i.e., 98724096 + 60435076 = 9936^2 + 7774^2 .

It is not an unprimeable number, because it can be changed into a prime (159159179) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 35493 + ... + 39724.

Almost surely, 2^159159172 is an apocalyptic number.

It is an amenable number.

159159172 is a deficient number, since it is larger than the sum of its proper divisors (132009706).

159159172 is a wasteful number, since it uses less digits than its factorization.

159159172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75267 (or 75242 counting only the distinct ones).

The product of its digits is 28350, while the sum is 40.

The square root of 159159172 is about 12615.8302144568. The cubic root of 159159172 is about 541.9308699384.

The spelling of 159159172 in words is "one hundred fifty-nine million, one hundred fifty-nine thousand, one hundred seventy-two".