455271247 has 2 divisors, whose sum is σ = 455271248. Its totient is φ = 455271246.

The previous prime is 455271221. The next prime is 455271259. The reversal of 455271247 is 742172554.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 455271247 - 2⁷ = 455271119 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 (455271277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227635623 + 227635624.

It is an arithmetic number, because the mean of its divisors is an integer number (227635624).

Almost surely, 2^455271247 is an apocalyptic number.

455271247 is a deficient number, since it is larger than the sum of its proper divisors (1).

455271247 is an equidigital number, since it uses as much as digits as its factorization.

455271247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78400, while the sum is 37.

The square root of 455271247 is about 21337.0861881373. The cubic root of 455271247 is about 769.2899774064.

The spelling of 455271247 in words is "four hundred fifty-five million, two hundred seventy-one thousand, two hundred forty-seven".