224005451 has 4 divisors (see below), whose sum is σ = 224038632. Its totient is φ = 223972272.

The previous prime is 224005409. The next prime is 224005471. The reversal of 224005451 is 154500422.

It is a happy number.

224005451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154500422 = 2 ⋅77250211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224005451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224005471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2441 + ... + 21306.

It is an arithmetic number, because the mean of its divisors is an integer number (56009658).

Almost surely, 2^224005451 is an apocalyptic number.

224005451 is a deficient number, since it is larger than the sum of its proper divisors (33181).

224005451 is an equidigital number, since it uses as much as digits as its factorization.

224005451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33180.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 224005451 is about 14966.8116511166. The cubic root of 224005451 is about 607.3227206585.

Adding to 224005451 its reverse (154500422), we get a palindrome (378505873).

The spelling of 224005451 in words is "two hundred twenty-four million, five thousand, four hundred fifty-one".