220454459 has 2 divisors, whose sum is σ = 220454460. Its totient is φ = 220454458.

The previous prime is 220454449. The next prime is 220454467. The reversal of 220454459 is 954454022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220454459 - 2⁸ = 220454203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220454449) 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, 110227229 + 110227230.

It is an arithmetic number, because the mean of its divisors is an integer number (110227230).

Almost surely, 2^220454459 is an apocalyptic number.

220454459 is a deficient number, since it is larger than the sum of its proper divisors (1).

220454459 is an equidigital number, since it uses as much as digits as its factorization.

220454459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 220454459 is about 14847.7088804974. The cubic root of 220454459 is about 604.0964670198.

The spelling of 220454459 in words is "two hundred twenty million, four hundred fifty-four thousand, four hundred fifty-nine".