229521353 has 2 divisors, whose sum is σ = 229521354. Its totient is φ = 229521352.

The previous prime is 229521247. The next prime is 229521361. The reversal of 229521353 is 353125922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140256649 + 89264704 = 11843^2 + 9448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229521353 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (229523353) 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, 114760676 + 114760677.

It is an arithmetic number, because the mean of its divisors is an integer number (114760677).

Almost surely, 2^229521353 is an apocalyptic number.

It is an amenable number.

229521353 is a deficient number, since it is larger than the sum of its proper divisors (1).

229521353 is an equidigital number, since it uses as much as digits as its factorization.

229521353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 32.

The square root of 229521353 is about 15149.9621451672. The cubic root of 229521353 is about 612.2672528428.

The spelling of 229521353 in words is "two hundred twenty-nine million, five hundred twenty-one thousand, three hundred fifty-three".