495139207 has 2 divisors, whose sum is σ = 495139208. Its totient is φ = 495139206.

The previous prime is 495139163. The next prime is 495139241. The reversal of 495139207 is 702931594.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 495139207 - 2²³ = 486750599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 495139207.

It is a congruent number.

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, 247569603 + 247569604.

It is an arithmetic number, because the mean of its divisors is an integer number (247569604).

Almost surely, 2^495139207 is an apocalyptic number.

495139207 is a deficient number, since it is larger than the sum of its proper divisors (1).

495139207 is an equidigital number, since it uses as much as digits as its factorization.

495139207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 495139207 is about 22251.7236860428. The cubic root of 495139207 is about 791.1201366986.

The spelling of 495139207 in words is "four hundred ninety-five million, one hundred thirty-nine thousand, two hundred seven".