454316021 has 4 divisors (see below), whose sum is σ = 459789792. Its totient is φ = 448842252.

The previous prime is 454315999. The next prime is 454316029. The reversal of 454316021 is 120613454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 454316021 - 2¹⁰ = 454314997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454316029) 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, 2736761 + ... + 2736926.

It is an arithmetic number, because the mean of its divisors is an integer number (114947448).

Almost surely, 2^454316021 is an apocalyptic number.

It is an amenable number.

454316021 is a deficient number, since it is larger than the sum of its proper divisors (5473771).

454316021 is an equidigital number, since it uses as much as digits as its factorization.

454316021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473770.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 454316021 is about 21314.6902628211. The cubic root of 454316021 is about 768.7515728613.

Adding to 454316021 its reverse (120613454), we get a palindrome (574929475).

The spelling of 454316021 in words is "four hundred fifty-four million, three hundred sixteen thousand, twenty-one".