4654523221 has 2 divisors, whose sum is σ = 4654523222. Its totient is φ = 4654523220.

The previous prime is 4654523213. The next prime is 4654523243. The reversal of 4654523221 is 1223254564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3888894321 + 765628900 = 62361^2 + 27670^2 .

It is a cyclic number.

It is not a de Polignac number, because 4654523221 - 2³ = 4654523213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4654523201) 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 as a sum of consecutive naturals, namely, 2327261610 + 2327261611.

It is an arithmetic number, because the mean of its divisors is an integer number (2327261611).

Almost surely, 2^4654523221 is an apocalyptic number.

It is an amenable number.

4654523221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4654523221 is an equidigital number, since it uses as much as digits as its factorization.

4654523221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 34.

The square root of 4654523221 is about 68224.0662889570. The cubic root of 4654523221 is about 1669.6485594387.

Adding to 4654523221 its reverse (1223254564), we get a palindrome (5877777785).

The spelling of 4654523221 in words is "four billion, six hundred fifty-four million, five hundred twenty-three thousand, two hundred twenty-one".