189495233 has 2 divisors, whose sum is σ = 189495234. Its totient is φ = 189495232.

The previous prime is 189495221. The next prime is 189495247. The reversal of 189495233 is 332594981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158936449 + 30558784 = 12607^2 + 5528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189495233 is a prime.

It is not a weakly prime, because it can be changed into another prime (189495203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94747616 + 94747617.

It is an arithmetic number, because the mean of its divisors is an integer number (94747617).

Almost surely, 2^189495233 is an apocalyptic number.

It is an amenable number.

189495233 is a deficient number, since it is larger than the sum of its proper divisors (1).

189495233 is an equidigital number, since it uses as much as digits as its factorization.

189495233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 189495233 is about 13765.7267516103. The cubic root of 189495233 is about 574.3801592830.

The spelling of 189495233 in words is "one hundred eighty-nine million, four hundred ninety-five thousand, two hundred thirty-three".