495590189 has 2 divisors, whose sum is σ = 495590190. Its totient is φ = 495590188.

The previous prime is 495590143. The next prime is 495590209. The reversal of 495590189 is 981095594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248314564 + 247275625 = 15758^2 + 15725^2 .

It is a cyclic number.

It is not a de Polignac number, because 495590189 - 2²⁰ = 494541613 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495590119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247795094 + 247795095.

It is an arithmetic number, because the mean of its divisors is an integer number (247795095).

Almost surely, 2^495590189 is an apocalyptic number.

It is an amenable number.

495590189 is a deficient number, since it is larger than the sum of its proper divisors (1).

495590189 is an equidigital number, since it uses as much as digits as its factorization.

495590189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 50.

The square root of 495590189 is about 22261.8550215385. The cubic root of 495590189 is about 791.3602527914.

The spelling of 495590189 in words is "four hundred ninety-five million, five hundred ninety thousand, one hundred eighty-nine".