159941161 has 4 divisors (see below), whose sum is σ = 160010500. Its totient is φ = 159871824.

The previous prime is 159941143. The next prime is 159941189. The reversal of 159941161 is 161149951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100881936 + 59059225 = 10044^2 + 7685^2 .

It is a cyclic number.

It is not a de Polignac number, because 159941161 - 2¹¹ = 159939113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 159941161.

It is not an unprimeable number, because it can be changed into a prime (159941101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31086 + ... + 35863.

It is an arithmetic number, because the mean of its divisors is an integer number (40002625).

Almost surely, 2^159941161 is an apocalyptic number.

It is an amenable number.

159941161 is a deficient number, since it is larger than the sum of its proper divisors (69339).

159941161 is an equidigital number, since it uses as much as digits as its factorization.

159941161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69338.

The product of its digits is 9720, while the sum is 37.

The square root of 159941161 is about 12646.7846111176. The cubic root of 159941161 is about 542.8169678190.

The spelling of 159941161 in words is "one hundred fifty-nine million, nine hundred forty-one thousand, one hundred sixty-one".