205040027 has 2 divisors, whose sum is σ = 205040028. Its totient is φ = 205040026.

The previous prime is 205039981. The next prime is 205040047. The reversal of 205040027 is 720040502.

205040027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (205040047) can be obtained adding 205040027 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205040027 - 2¹⁸ = 204777883 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 205039990 and 205040008.

It is not a weakly prime, because it can be changed into another prime (205040047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102520013 + 102520014.

It is an arithmetic number, because the mean of its divisors is an integer number (102520014).

Almost surely, 2^205040027 is an apocalyptic number.

205040027 is a deficient number, since it is larger than the sum of its proper divisors (1).

205040027 is an equidigital number, since it uses as much as digits as its factorization.

205040027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 205040027 is about 14319.2187985239. The cubic root of 205040027 is about 589.6752277506.

Adding to 205040027 its reverse (720040502), we get a palindrome (925080529).

The spelling of 205040027 in words is "two hundred five million, forty thousand, twenty-seven".