159161189 has 16 divisors (see below), whose sum is σ = 179551680. Its totient is φ = 139829760.

The previous prime is 159161179. The next prime is 159161207. The reversal of 159161189 is 981161951.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 159161189 - 2²⁰ = 158112613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159161179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44147 + ... + 47615.

It is an arithmetic number, because the mean of its divisors is an integer number (11221980).

Almost surely, 2^159161189 is an apocalyptic number.

It is an amenable number.

159161189 is a deficient number, since it is larger than the sum of its proper divisors (20390491).

159161189 is a wasteful number, since it uses less digits than its factorization.

159161189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3620.

The product of its digits is 19440, while the sum is 41.

The square root of 159161189 is about 12615.9101534531. The cubic root of 159161189 is about 541.9331591979.

The spelling of 159161189 in words is "one hundred fifty-nine million, one hundred sixty-one thousand, one hundred eighty-nine".