4521223205 has 8 divisors (see below), whose sum is σ = 5425946232. Its totient is φ = 3616659648.

The previous prime is 4521223123. The next prime is 4521223249. The reversal of 4521223205 is 5023221254.

It can be written as a sum of positive squares in 4 ways, for example, as 2938615681 + 1582607524 = 54209^2 + 39782^2 .

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 4521223205 - 2²⁰ = 4520174629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35447 + ... + 101483.

It is an arithmetic number, because the mean of its divisors is an integer number (678243279).

Almost surely, 2^4521223205 is an apocalyptic number.

It is an amenable number.

4521223205 is a deficient number, since it is larger than the sum of its proper divisors (904723027).

4521223205 is a wasteful number, since it uses less digits than its factorization.

4521223205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79735.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 4521223205 is about 67240.0416790472. The cubic root of 4521223205 is about 1653.5550169880. Note that the first 3 decimals are identical.

Adding to 4521223205 its reverse (5023221254), we get a palindrome (9544444459).

The spelling of 4521223205 in words is "four billion, five hundred twenty-one million, two hundred twenty-three thousand, two hundred five".