8160904189 has 2 divisors, whose sum is σ = 8160904190. Its totient is φ = 8160904188.

The previous prime is 8160904159. The next prime is 8160904207. The reversal of 8160904189 is 9814090618.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7841102500 + 319801689 = 88550^2 + 17883^2 .

It is a cyclic number.

It is not a de Polignac number, because 8160904189 - 2²¹ = 8158807037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8160904159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4080452094 + 4080452095.

It is an arithmetic number, because the mean of its divisors is an integer number (4080452095).

Almost surely, 2^8160904189 is an apocalyptic number.

It is an amenable number.

8160904189 is a deficient number, since it is larger than the sum of its proper divisors (1).

8160904189 is an equidigital number, since it uses as much as digits as its factorization.

8160904189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 8160904189 is about 90337.7229566918. The cubic root of 8160904189 is about 2013.3197772546.

The spelling of 8160904189 in words is "eight billion, one hundred sixty million, nine hundred four thousand, one hundred eighty-nine".