454587491 has 2 divisors, whose sum is σ = 454587492. Its totient is φ = 454587490.

The previous prime is 454587457. The next prime is 454587533. The reversal of 454587491 is 194785454.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 454587491 - 2¹⁴ = 454571107 is a prime.

It is not a weakly prime, because it can be changed into another prime (454587401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227293745 + 227293746.

It is an arithmetic number, because the mean of its divisors is an integer number (227293746).

Almost surely, 2^454587491 is an apocalyptic number.

454587491 is a deficient number, since it is larger than the sum of its proper divisors (1).

454587491 is an equidigital number, since it uses as much as digits as its factorization.

454587491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 47.

The square root of 454587491 is about 21321.0574550138. The cubic root of 454587491 is about 768.9046611863.

The spelling of 454587491 in words is "four hundred fifty-four million, five hundred eighty-seven thousand, four hundred ninety-one".