204135683 has 2 divisors, whose sum is σ = 204135684. Its totient is φ = 204135682.

The previous prime is 204135653. The next prime is 204135689. The reversal of 204135683 is 386531402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204135683 - 2²⁶ = 137026819 is a prime.

It is not a weakly prime, because it can be changed into another prime (204135689) 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, 102067841 + 102067842.

It is an arithmetic number, because the mean of its divisors is an integer number (102067842).

Almost surely, 2^204135683 is an apocalyptic number.

204135683 is a deficient number, since it is larger than the sum of its proper divisors (1).

204135683 is an equidigital number, since it uses as much as digits as its factorization.

204135683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 204135683 is about 14287.6059226170. The cubic root of 204135683 is about 588.8070148519.

The spelling of 204135683 in words is "two hundred four million, one hundred thirty-five thousand, six hundred eighty-three".