189265723 has 2 divisors, whose sum is σ = 189265724. Its totient is φ = 189265722.

The previous prime is 189265711. The next prime is 189265729. The reversal of 189265723 is 327562981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189265723 - 2⁵ = 189265691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189265723.

It is not a weakly prime, because it can be changed into another prime (189265729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94632861 + 94632862.

It is an arithmetic number, because the mean of its divisors is an integer number (94632862).

Almost surely, 2^189265723 is an apocalyptic number.

189265723 is a deficient number, since it is larger than the sum of its proper divisors (1).

189265723 is an equidigital number, since it uses as much as digits as its factorization.

189265723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 189265723 is about 13757.3879424838. The cubic root of 189265723 is about 574.1481758796.

It can be divided in two parts, 18926 and 5723, that added together give a square (24649 = 157²).

The spelling of 189265723 in words is "one hundred eighty-nine million, two hundred sixty-five thousand, seven hundred twenty-three".