455463221 has 2 divisors, whose sum is σ = 455463222. Its totient is φ = 455463220.

The previous prime is 455463199. The next prime is 455463293. The reversal of 455463221 is 122364554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451095121 + 4368100 = 21239^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 455463221 - 2⁶ = 455463157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455463121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227731610 + 227731611.

It is an arithmetic number, because the mean of its divisors is an integer number (227731611).

Almost surely, 2^455463221 is an apocalyptic number.

It is an amenable number.

455463221 is a deficient number, since it is larger than the sum of its proper divisors (1).

455463221 is an equidigital number, since it uses as much as digits as its factorization.

455463221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 32.

The square root of 455463221 is about 21341.5843132603. The cubic root of 455463221 is about 769.3980909190.

The spelling of 455463221 in words is "four hundred fifty-five million, four hundred sixty-three thousand, two hundred twenty-one".