189230609 has 2 divisors, whose sum is σ = 189230610. Its totient is φ = 189230608.

The previous prime is 189230599. The next prime is 189230653. The reversal of 189230609 is 906032981.

189230609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174979984 + 14250625 = 13228^2 + 3775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189230609 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (189235609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94615304 + 94615305.

It is an arithmetic number, because the mean of its divisors is an integer number (94615305).

Almost surely, 2^189230609 is an apocalyptic number.

It is an amenable number.

189230609 is a deficient number, since it is larger than the sum of its proper divisors (1).

189230609 is an equidigital number, since it uses as much as digits as its factorization.

189230609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 189230609 is about 13756.1116962607. Note that the first 3 decimals coincide. The cubic root of 189230609 is about 574.1126669214.

The spelling of 189230609 in words is "one hundred eighty-nine million, two hundred thirty thousand, six hundred nine".