9120656173 has 2 divisors, whose sum is σ = 9120656174. Its totient is φ = 9120656172.

The previous prime is 9120656147. The next prime is 9120656191. The reversal of 9120656173 is 3716560219.

9120656173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9047433924 + 73222249 = 95118^2 + 8557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9120656173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9120656113) 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 as a sum of consecutive naturals, namely, 4560328086 + 4560328087.

It is an arithmetic number, because the mean of its divisors is an integer number (4560328087).

Almost surely, 2^9120656173 is an apocalyptic number.

It is an amenable number.

9120656173 is a deficient number, since it is larger than the sum of its proper divisors (1).

9120656173 is an equidigital number, since it uses as much as digits as its factorization.

9120656173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 9120656173 is about 95502.1265365332. The cubic root of 9120656173 is about 2089.3379596900.

The spelling of 9120656173 in words is "nine billion, one hundred twenty million, six hundred fifty-six thousand, one hundred seventy-three".