189164113 has 2 divisors, whose sum is σ = 189164114. Its totient is φ = 189164112.

The previous prime is 189164069. The next prime is 189164137. The reversal of 189164113 is 311461981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170224209 + 18939904 = 13047^2 + 4352^2 .

It is a cyclic number.

It is not a de Polignac number, because 189164113 - 2²¹ = 187066961 is a prime.

It is not a weakly prime, because it can be changed into another prime (189164153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94582056 + 94582057.

It is an arithmetic number, because the mean of its divisors is an integer number (94582057).

Almost surely, 2^189164113 is an apocalyptic number.

It is an amenable number.

189164113 is a deficient number, since it is larger than the sum of its proper divisors (1).

189164113 is an equidigital number, since it uses as much as digits as its factorization.

189164113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 34.

The square root of 189164113 is about 13753.6945218367. The cubic root of 189164113 is about 574.0454109443.

The spelling of 189164113 in words is "one hundred eighty-nine million, one hundred sixty-four thousand, one hundred thirteen".