481666459 has 2 divisors, whose sum is σ = 481666460. Its totient is φ = 481666458.

The previous prime is 481666447. The next prime is 481666469. The reversal of 481666459 is 954666184.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 481666459 - 2²³ = 473277851 is a prime.

It is not a weakly prime, because it can be changed into another prime (481666429) 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, 240833229 + 240833230.

It is an arithmetic number, because the mean of its divisors is an integer number (240833230).

Almost surely, 2^481666459 is an apocalyptic number.

481666459 is a deficient number, since it is larger than the sum of its proper divisors (1).

481666459 is an equidigital number, since it uses as much as digits as its factorization.

481666459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 49.

The square root of 481666459 is about 21946.9008973932. The cubic root of 481666459 is about 783.8785880944.

The spelling of 481666459 in words is "four hundred eighty-one million, six hundred sixty-six thousand, four hundred fifty-nine".