529221229 has 2 divisors, whose sum is σ = 529221230. Its totient is φ = 529221228.

The previous prime is 529221227. The next prime is 529221239. The reversal of 529221229 is 922122925.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420332004 + 108889225 = 20502^2 + 10435^2 .

It is a cyclic number.

It is not a de Polignac number, because 529221229 - 2¹ = 529221227 is a prime.

Together with 529221227, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 529221194 and 529221203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (529221227) 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, 264610614 + 264610615.

It is an arithmetic number, because the mean of its divisors is an integer number (264610615).

Almost surely, 2^529221229 is an apocalyptic number.

It is an amenable number.

529221229 is a deficient number, since it is larger than the sum of its proper divisors (1).

529221229 is an equidigital number, since it uses as much as digits as its factorization.

529221229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 529221229 is about 23004.8088233743. The cubic root of 529221229 is about 808.8706656648.

The spelling of 529221229 in words is "five hundred twenty-nine million, two hundred twenty-one thousand, two hundred twenty-nine".