205445027 has 2 divisors, whose sum is σ = 205445028. Its totient is φ = 205445026.

The previous prime is 205444991. The next prime is 205445033. The reversal of 205445027 is 720544502.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205445027 - 2⁶ = 205444963 is a prime.

It is equal to p_11363672 and since 205445027 and 11363672 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (205445047) 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, 102722513 + 102722514.

It is an arithmetic number, because the mean of its divisors is an integer number (102722514).

Almost surely, 2^205445027 is an apocalyptic number.

205445027 is a deficient number, since it is larger than the sum of its proper divisors (1).

205445027 is an equidigital number, since it uses as much as digits as its factorization.

205445027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 205445027 is about 14333.3536550244. The cubic root of 205445027 is about 590.0632193102.

Adding to 205445027 its reverse (720544502), we get a palindrome (925989529).

The spelling of 205445027 in words is "two hundred five million, four hundred forty-five thousand, twenty-seven".