495139273 has 2 divisors, whose sum is σ = 495139274. Its totient is φ = 495139272.

The previous prime is 495139241. The next prime is 495139277. The reversal of 495139273 is 372931594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 457831609 + 37307664 = 21397^2 + 6108^2 .

It is a cyclic number.

It is not a de Polignac number, because 495139273 - 2⁵ = 495139241 is a prime.

It is not a weakly prime, because it can be changed into another prime (495139277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247569636 + 247569637.

It is an arithmetic number, because the mean of its divisors is an integer number (247569637).

Almost surely, 2^495139273 is an apocalyptic number.

It is an amenable number.

495139273 is a deficient number, since it is larger than the sum of its proper divisors (1).

495139273 is an equidigital number, since it uses as much as digits as its factorization.

495139273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 495139273 is about 22251.7251690740. The cubic root of 495139273 is about 791.1201718496.

The spelling of 495139273 in words is "four hundred ninety-five million, one hundred thirty-nine thousand, two hundred seventy-three".