919454563 has 2 divisors, whose sum is σ = 919454564. Its totient is φ = 919454562.

The previous prime is 919454533. The next prime is 919454573. The reversal of 919454563 is 365454919.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 919454563 - 2⁹ = 919454051 is a prime.

It is not a weakly prime, because it can be changed into another prime (919454533) 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, 459727281 + 459727282.

It is an arithmetic number, because the mean of its divisors is an integer number (459727282).

Almost surely, 2^919454563 is an apocalyptic number.

919454563 is a deficient number, since it is larger than the sum of its proper divisors (1).

919454563 is an equidigital number, since it uses as much as digits as its factorization.

919454563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 46.

The square root of 919454563 is about 30322.5091804752. The cubic root of 919454563 is about 972.3965831747.

The spelling of 919454563 in words is "nine hundred nineteen million, four hundred fifty-four thousand, five hundred sixty-three".