205134233 has 2 divisors, whose sum is σ = 205134234. Its totient is φ = 205134232.

The previous prime is 205134229. The next prime is 205134247. The reversal of 205134233 is 332431502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129322384 + 75811849 = 11372^2 + 8707^2 .

It is a cyclic number.

It is not a de Polignac number, because 205134233 - 2² = 205134229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205134199 and 205134208.

It is not a weakly prime, because it can be changed into another prime (205134133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102567116 + 102567117.

It is an arithmetic number, because the mean of its divisors is an integer number (102567117).

Almost surely, 2^205134233 is an apocalyptic number.

It is an amenable number.

205134233 is a deficient number, since it is larger than the sum of its proper divisors (1).

205134233 is an equidigital number, since it uses as much as digits as its factorization.

205134233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 205134233 is about 14322.5079158645. The cubic root of 205134233 is about 589.7655230291.

Adding to 205134233 its reverse (332431502), we get a palindrome (537565735).

The spelling of 205134233 in words is "two hundred five million, one hundred thirty-four thousand, two hundred thirty-three".