455768491 has 2 divisors, whose sum is σ = 455768492. Its totient is φ = 455768490.

The previous prime is 455768477. The next prime is 455768497. The reversal of 455768491 is 194867554.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 455768491 - 2¹³ = 455760299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (455768497) 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, 227884245 + 227884246.

It is an arithmetic number, because the mean of its divisors is an integer number (227884246).

Almost surely, 2^455768491 is an apocalyptic number.

455768491 is a deficient number, since it is larger than the sum of its proper divisors (1).

455768491 is an equidigital number, since it uses as much as digits as its factorization.

455768491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 49.

The square root of 455768491 is about 21348.7351147556. The cubic root of 455768491 is about 769.5699465083.

The spelling of 455768491 in words is "four hundred fifty-five million, seven hundred sixty-eight thousand, four hundred ninety-one".