454991 has 2 divisors, whose sum is σ = 454992. Its totient is φ = 454990.

The previous prime is 454973. The next prime is 455003. The reversal of 454991 is 199454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 454991 - 2¹⁸ = 192847 is a prime.

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 454991.

It is not a weakly prime, because it can be changed into another prime (454921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227495 + 227496.

It is an arithmetic number, because the mean of its divisors is an integer number (227496).

2⁴⁵⁴⁹⁹¹ is an apocalyptic number.

454991 is a deficient number, since it is larger than the sum of its proper divisors (1).

454991 is an equidigital number, since it uses as much as digits as its factorization.

454991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 32.

The square root of 454991 is about 674.5302068848. The cubic root of 454991 is about 76.9132096831.

The spelling of 454991 in words is "four hundred fifty-four thousand, nine hundred ninety-one".