4528021229 has 2 divisors, whose sum is σ = 4528021230. Its totient is φ = 4528021228.

The previous prime is 4528021177. The next prime is 4528021273. The reversal of 4528021229 is 9221208254.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4492618729 + 35402500 = 67027^2 + 5950^2 .

It is a cyclic number.

It is not a de Polignac number, because 4528021229 - 2¹⁶ = 4527955693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4528021279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2264010614 + 2264010615.

It is an arithmetic number, because the mean of its divisors is an integer number (2264010615).

Almost surely, 2^4528021229 is an apocalyptic number.

It is an amenable number.

4528021229 is a deficient number, since it is larger than the sum of its proper divisors (1).

4528021229 is an equidigital number, since it uses as much as digits as its factorization.

4528021229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 4528021229 is about 67290.5731064909. The cubic root of 4528021229 is about 1654.3833531124.

The spelling of 4528021229 in words is "four billion, five hundred twenty-eight million, twenty-one thousand, two hundred twenty-nine".