454664491 has 2 divisors, whose sum is σ = 454664492. Its totient is φ = 454664490.

The previous prime is 454664467. The next prime is 454664531. The reversal of 454664491 is 194466454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 454664491 - 2⁵ = 454664459 is a prime.

It is not a weakly prime, because it can be changed into another prime (454664401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227332245 + 227332246.

It is an arithmetic number, because the mean of its divisors is an integer number (227332246).

Almost surely, 2^454664491 is an apocalyptic number.

454664491 is a deficient number, since it is larger than the sum of its proper divisors (1).

454664491 is an equidigital number, since it uses as much as digits as its factorization.

454664491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 43.

The square root of 454664491 is about 21322.8631051273. The cubic root of 454664491 is about 768.9480722037.

The spelling of 454664491 in words is "four hundred fifty-four million, six hundred sixty-four thousand, four hundred ninety-one".