495196391 has 2 divisors, whose sum is σ = 495196392. Its totient is φ = 495196390.

The previous prime is 495196379. The next prime is 495196393. The reversal of 495196391 is 193691594.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 495196391 - 2⁶ = 495196327 is a prime.

Together with 495196393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495196393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247598195 + 247598196.

It is an arithmetic number, because the mean of its divisors is an integer number (247598196).

Almost surely, 2^495196391 is an apocalyptic number.

495196391 is a deficient number, since it is larger than the sum of its proper divisors (1).

495196391 is an equidigital number, since it uses as much as digits as its factorization.

495196391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 47.

The square root of 495196391 is about 22253.0085831107. The cubic root of 495196391 is about 791.1505912131.

The spelling of 495196391 in words is "four hundred ninety-five million, one hundred ninety-six thousand, three hundred ninety-one".