454420091 has 2 divisors, whose sum is σ = 454420092. Its totient is φ = 454420090.

The previous prime is 454420061. The next prime is 454420139. The reversal of 454420091 is 190024454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 454420091 - 2¹⁸ = 454157947 is a prime.

It is not a weakly prime, because it can be changed into another prime (454420061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227210045 + 227210046.

It is an arithmetic number, because the mean of its divisors is an integer number (227210046).

Almost surely, 2^454420091 is an apocalyptic number.

454420091 is a deficient number, since it is larger than the sum of its proper divisors (1).

454420091 is an equidigital number, since it uses as much as digits as its factorization.

454420091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 454420091 is about 21317.1313970712. The cubic root of 454420091 is about 768.8102675909.

The spelling of 454420091 in words is "four hundred fifty-four million, four hundred twenty thousand, ninety-one".