189330923 has 2 divisors, whose sum is σ = 189330924. Its totient is φ = 189330922.

The previous prime is 189330913. The next prime is 189330931. The reversal of 189330923 is 329033981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189330923 - 2⁶ = 189330859 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (189330913) 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, 94665461 + 94665462.

It is an arithmetic number, because the mean of its divisors is an integer number (94665462).

Almost surely, 2^189330923 is an apocalyptic number.

189330923 is a deficient number, since it is larger than the sum of its proper divisors (1).

189330923 is an equidigital number, since it uses as much as digits as its factorization.

189330923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 189330923 is about 13759.7573743144. The cubic root of 189330923 is about 574.2140975949.

The spelling of 189330923 in words is "one hundred eighty-nine million, three hundred thirty thousand, nine hundred twenty-three".