205341013 has 2 divisors, whose sum is σ = 205341014. Its totient is φ = 205341012.

The previous prime is 205340981. The next prime is 205341077. The reversal of 205341013 is 310143502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204432804 + 908209 = 14298^2 + 953^2 .

It is a cyclic number.

It is not a de Polignac number, because 205341013 - 2⁵ = 205340981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205341413) 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, 102670506 + 102670507.

It is an arithmetic number, because the mean of its divisors is an integer number (102670507).

Almost surely, 2^205341013 is an apocalyptic number.

It is an amenable number.

205341013 is a deficient number, since it is larger than the sum of its proper divisors (1).

205341013 is an equidigital number, since it uses as much as digits as its factorization.

205341013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 205341013 is about 14329.7248054525. The cubic root of 205341013 is about 589.9636221945.

Adding to 205341013 its reverse (310143502), we get a palindrome (515484515).

The spelling of 205341013 in words is "two hundred five million, three hundred forty-one thousand, thirteen".