654455453 has 2 divisors, whose sum is σ = 654455454. Its totient is φ = 654455452.

The previous prime is 654455449. The next prime is 654455471. The reversal of 654455453 is 354554456.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357134404 + 297321049 = 18898^2 + 17243^2 .

It is a cyclic number.

It is not a de Polignac number, because 654455453 - 2² = 654455449 is a prime.

It is a super-2 number, since 2×654455453² = 856623879922870418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 654455453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654455413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327227726 + 327227727.

It is an arithmetic number, because the mean of its divisors is an integer number (327227727).

Almost surely, 2^654455453 is an apocalyptic number.

It is an amenable number.

654455453 is a deficient number, since it is larger than the sum of its proper divisors (1).

654455453 is an equidigital number, since it uses as much as digits as its factorization.

654455453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720000, while the sum is 41.

The square root of 654455453 is about 25582.3269660913. The cubic root of 654455453 is about 868.2138246781.

The spelling of 654455453 in words is "six hundred fifty-four million, four hundred fifty-five thousand, four hundred fifty-three".