455307493 has 2 divisors, whose sum is σ = 455307494. Its totient is φ = 455307492.

The previous prime is 455307473. The next prime is 455307499. The reversal of 455307493 is 394703554.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272976484 + 182331009 = 16522^2 + 13503^2 .

It is a cyclic number.

It is not a de Polignac number, because 455307493 - 2⁹ = 455306981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455307499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227653746 + 227653747.

It is an arithmetic number, because the mean of its divisors is an integer number (227653747).

Almost surely, 2^455307493 is an apocalyptic number.

It is an amenable number.

455307493 is a deficient number, since it is larger than the sum of its proper divisors (1).

455307493 is an equidigital number, since it uses as much as digits as its factorization.

455307493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 40.

The square root of 455307493 is about 21337.9355374413. The cubic root of 455307493 is about 769.3103923018.

The spelling of 455307493 in words is "four hundred fifty-five million, three hundred seven thousand, four hundred ninety-three".