89173307161 has 9 divisors (see below), whose sum is σ = 90544431999. Its totient is φ = 87822653424.

The previous prime is 89173307159. The next prime is 89173307177. The reversal of 89173307161 is 16170337198.

The square root of 89173307161 is 298619.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 62622560025 + 26550747136 = 250245^2 + 162944^2 .

It is not a de Polignac number, because 89173307161 - 2¹ = 89173307159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89173307141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20005245 + ... + 20009701.

Almost surely, 2^89173307161 is an apocalyptic number.

89173307161 is the 298619-th square number.

89173307161 is the 149310-th centered octagonal number.

It is an amenable number.

89173307161 is a deficient number, since it is larger than the sum of its proper divisors (1371124838).

89173307161 is an frugal number, since it uses more digits than its factorization.

89173307161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9048 (or 4524 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 46.

The spelling of 89173307161 in words is "eighty-nine billion, one hundred seventy-three million, three hundred seven thousand, one hundred sixty-one".