205116127 has 2 divisors, whose sum is σ = 205116128. Its totient is φ = 205116126.

The previous prime is 205116113. The next prime is 205116133. The reversal of 205116127 is 721611502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205116127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205116167) 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, 102558063 + 102558064.

It is an arithmetic number, because the mean of its divisors is an integer number (102558064).

Almost surely, 2^205116127 is an apocalyptic number.

205116127 is a deficient number, since it is larger than the sum of its proper divisors (1).

205116127 is an equidigital number, since it uses as much as digits as its factorization.

205116127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 205116127 is about 14321.8758198778. The cubic root of 205116127 is about 589.7481707998.

Adding to 205116127 its reverse (721611502), we get a palindrome (926727629).

The spelling of 205116127 in words is "two hundred five million, one hundred sixteen thousand, one hundred twenty-seven".