224521540445 has 8 divisors (see below), whose sum is σ = 269462554200. Its totient is φ = 179592761920.

The previous prime is 224521540433. The next prime is 224521540471. The reversal of 224521540445 is 544045125422.

224521540445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 61960170724 + 162561369721 = 248918^2 + 403189^2 .

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

It is not a de Polignac number, because 224521540445 - 2⁶ = 224521540381 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 224521540399 and 224521540408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3018386 + ... + 3091875.

It is an arithmetic number, because the mean of its divisors is an integer number (33682819275).

Almost surely, 2^224521540445 is an apocalyptic number.

It is an amenable number.

224521540445 is a deficient number, since it is larger than the sum of its proper divisors (44941013755).

224521540445 is an equidigital number, since it uses as much as digits as its factorization.

224521540445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117615.

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 224521540445 its reverse (544045125422), we get a palindrome (768566665867).

The spelling of 224521540445 in words is "two hundred twenty-four billion, five hundred twenty-one million, five hundred forty thousand, four hundred forty-five".