205601713 has 2 divisors, whose sum is σ = 205601714. Its totient is φ = 205601712.

The previous prime is 205601663. The next prime is 205601743. The reversal of 205601713 is 317106502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125821089 + 79780624 = 11217^2 + 8932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205601713 is a prime.

It is not a weakly prime, because it can be changed into another prime (205601743) 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, 102800856 + 102800857.

It is an arithmetic number, because the mean of its divisors is an integer number (102800857).

Almost surely, 2^205601713 is an apocalyptic number.

It is an amenable number.

205601713 is a deficient number, since it is larger than the sum of its proper divisors (1).

205601713 is an equidigital number, since it uses as much as digits as its factorization.

205601713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 205601713 is about 14338.8183962278. The cubic root of 205601713 is about 590.2131883033.

The spelling of 205601713 in words is "two hundred five million, six hundred one thousand, seven hundred thirteen".