205427713 has 2 divisors, whose sum is σ = 205427714. Its totient is φ = 205427712.

The previous prime is 205427699. The next prime is 205427771. The reversal of 205427713 is 317724502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183412849 + 22014864 = 13543^2 + 4692^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205427713 is a prime.

It is not a weakly prime, because it can be changed into another prime (205427773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102713856 + 102713857.

It is an arithmetic number, because the mean of its divisors is an integer number (102713857).

Almost surely, 2^205427713 is an apocalyptic number.

It is an amenable number.

205427713 is a deficient number, since it is larger than the sum of its proper divisors (1).

205427713 is an equidigital number, since it uses as much as digits as its factorization.

205427713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 205427713 is about 14332.7496664108. The cubic root of 205427713 is about 590.0466428700.

The spelling of 205427713 in words is "two hundred five million, four hundred twenty-seven thousand, seven hundred thirteen".