224534521 has 8 divisors (see below), whose sum is σ = 237875400. Its totient is φ = 211208448.

The previous prime is 224534509. The next prime is 224534539. The reversal of 224534521 is 125435422.

It can be written as a sum of positive squares in 4 ways, for example, as 36433296 + 188101225 = 6036^2 + 13715^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 224534521 - 2¹⁷ = 224403449 is a prime.

It is a super-2 number, since 2×224534521² = 100831502241398882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 224534521.

It is not an unprimeable number, because it can be changed into a prime (224534561) 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 7 ways as a sum of consecutive naturals, for example, 49455 + ... + 53803.

It is an arithmetic number, because the mean of its divisors is an integer number (29734425).

Almost surely, 2^224534521 is an apocalyptic number.

It is an amenable number.

224534521 is a deficient number, since it is larger than the sum of its proper divisors (13340879).

224534521 is a wasteful number, since it uses less digits than its factorization.

224534521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7403.

The product of its digits is 9600, while the sum is 28.

The square root of 224534521 is about 14984.4760001810. The cubic root of 224534521 is about 607.8004822392.

Adding to 224534521 its reverse (125435422), we get a palindrome (349969943).

Subtracting from 224534521 its reverse (125435422), we obtain a palindrome (99099099).

The spelling of 224534521 in words is "two hundred twenty-four million, five hundred thirty-four thousand, five hundred twenty-one".