985175165 has 16 divisors (see below), whose sum is σ = 1286282928. Its totient is φ = 720009216.

The previous prime is 985175161. The next prime is 985175173. The reversal of 985175165 is 561571589.

It can be written as a sum of positive squares in 8 ways, for example, as 385219129 + 599956036 = 19627^2 + 24494^2 .

It is a cyclic number.

It is not a de Polignac number, because 985175165 - 2² = 985175161 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985175161) 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 15 ways as a sum of consecutive naturals, for example, 71822 + ... + 84431.

It is an arithmetic number, because the mean of its divisors is an integer number (80392683).

Almost surely, 2^985175165 is an apocalyptic number.

It is an amenable number.

985175165 is a deficient number, since it is larger than the sum of its proper divisors (301107763).

985175165 is a wasteful number, since it uses less digits than its factorization.

985175165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156368.

The product of its digits is 378000, while the sum is 47.

The square root of 985175165 is about 31387.5001393867. The cubic root of 985175165 is about 995.0337656782.

The spelling of 985175165 in words is "nine hundred eighty-five million, one hundred seventy-five thousand, one hundred sixty-five".