454720091 has 4 divisors (see below), whose sum is σ = 519680112. Its totient is φ = 389760072.

The previous prime is 454720081. The next prime is 454720093. The reversal of 454720091 is 190027454.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 454720091 - 2¹⁸ = 454457947 is a prime.

It is a super-2 number, since 2×454720091² = 413540722318096562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (454720093) 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 in 3 ways as a sum of consecutive naturals, for example, 32480000 + ... + 32480013.

It is an arithmetic number, because the mean of its divisors is an integer number (129920028).

Almost surely, 2^454720091 is an apocalyptic number.

454720091 is a deficient number, since it is larger than the sum of its proper divisors (64960021).

454720091 is an equidigital number, since it uses as much as digits as its factorization.

454720091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64960020.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 454720091 is about 21324.1668301484. The cubic root of 454720091 is about 768.9794152937.

The spelling of 454720091 in words is "four hundred fifty-four million, seven hundred twenty thousand, ninety-one".