224454509 has 2 divisors, whose sum is σ = 224454510. Its totient is φ = 224454508.

The previous prime is 224454497. The next prime is 224454533. The reversal of 224454509 is 905454422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120516484 + 103938025 = 10978^2 + 10195^2 .

It is a cyclic number.

It is not a de Polignac number, because 224454509 - 2²⁴ = 207677293 is a prime.

It is a super-2 number, since 2×224454509² = 100759653220862162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224454589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112227254 + 112227255.

It is an arithmetic number, because the mean of its divisors is an integer number (112227255).

Almost surely, 2^224454509 is an apocalyptic number.

It is an amenable number.

224454509 is a deficient number, since it is larger than the sum of its proper divisors (1).

224454509 is an equidigital number, since it uses as much as digits as its factorization.

224454509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 224454509 is about 14981.8059325303. The cubic root of 224454509 is about 607.7282778855.

The spelling of 224454509 in words is "two hundred twenty-four million, four hundred fifty-four thousand, five hundred nine".