495140797 has 2 divisors, whose sum is σ = 495140798. Its totient is φ = 495140796.

The previous prime is 495140783. The next prime is 495140819. The reversal of 495140797 is 797041594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 335219481 + 159921316 = 18309^2 + 12646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-495140797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495140747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247570398 + 247570399.

It is an arithmetic number, because the mean of its divisors is an integer number (247570399).

Almost surely, 2^495140797 is an apocalyptic number.

It is an amenable number.

495140797 is a deficient number, since it is larger than the sum of its proper divisors (1).

495140797 is an equidigital number, since it uses as much as digits as its factorization.

495140797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 495140797 is about 22251.7594135835. The cubic root of 495140797 is about 791.1209835175.

The spelling of 495140797 in words is "four hundred ninety-five million, one hundred forty thousand, seven hundred ninety-seven".