495438631 has 2 divisors, whose sum is σ = 495438632. Its totient is φ = 495438630.

The previous prime is 495438577. The next prime is 495438679. The reversal of 495438631 is 136834594.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 495438631 - 2¹⁵ = 495405863 is a prime.

It is a super-2 number, since 2×495438631² = 490918874174308322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495408631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247719315 + 247719316.

It is an arithmetic number, because the mean of its divisors is an integer number (247719316).

Almost surely, 2^495438631 is an apocalyptic number.

495438631 is a deficient number, since it is larger than the sum of its proper divisors (1).

495438631 is an equidigital number, since it uses as much as digits as its factorization.

495438631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 43.

The square root of 495438631 is about 22258.4507771767. The cubic root of 495438631 is about 791.2795751078.

The spelling of 495438631 in words is "four hundred ninety-five million, four hundred thirty-eight thousand, six hundred thirty-one".