454521217 has 2 divisors, whose sum is σ = 454521218. Its totient is φ = 454521216.

The previous prime is 454521167. The next prime is 454521247. The reversal of 454521217 is 712125454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 414692496 + 39828721 = 20364^2 + 6311^2 .

It is a cyclic number.

It is not a de Polignac number, because 454521217 - 2¹⁹ = 453996929 is a prime.

It is a super-2 number, since 2×454521217² = 413179073406322178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (454521247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227260608 + 227260609.

It is an arithmetic number, because the mean of its divisors is an integer number (227260609).

Almost surely, 2^454521217 is an apocalyptic number.

It is an amenable number.

454521217 is a deficient number, since it is larger than the sum of its proper divisors (1).

454521217 is an equidigital number, since it uses as much as digits as its factorization.

454521217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11200, while the sum is 31.

The square root of 454521217 is about 21319.5032071575. The cubic root of 454521217 is about 768.8672933418.

The spelling of 454521217 in words is "four hundred fifty-four million, five hundred twenty-one thousand, two hundred seventeen".