185335229 has 2 divisors, whose sum is σ = 185335230. Its totient is φ = 185335228.

The previous prime is 185335187. The next prime is 185335231. The reversal of 185335229 is 922533581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157000900 + 28334329 = 12530^2 + 5323^2 .

It is a cyclic number.

It is not a de Polignac number, because 185335229 - 2⁸ = 185334973 is a prime.

It is a Sophie Germain prime.

Together with 185335231, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 185335192 and 185335201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185335279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92667614 + 92667615.

It is an arithmetic number, because the mean of its divisors is an integer number (92667615).

Almost surely, 2^185335229 is an apocalyptic number.

It is an amenable number.

185335229 is a deficient number, since it is larger than the sum of its proper divisors (1).

185335229 is an equidigital number, since it uses as much as digits as its factorization.

185335229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 38.

The square root of 185335229 is about 13613.7881943271. The cubic root of 185335229 is about 570.1458834561.

The spelling of 185335229 in words is "one hundred eighty-five million, three hundred thirty-five thousand, two hundred twenty-nine".