205303061 has 2 divisors, whose sum is σ = 205303062. Its totient is φ = 205303060.

The previous prime is 205303039. The next prime is 205303181. The reversal of 205303061 is 160303502.

205303061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131446225 + 73856836 = 11465^2 + 8594^2 .

It is a cyclic number.

It is not a de Polignac number, because 205303061 - 2¹⁴ = 205286677 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205303261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102651530 + 102651531.

It is an arithmetic number, because the mean of its divisors is an integer number (102651531).

Almost surely, 2^205303061 is an apocalyptic number.

It is an amenable number.

205303061 is a deficient number, since it is larger than the sum of its proper divisors (1).

205303061 is an equidigital number, since it uses as much as digits as its factorization.

205303061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 205303061 is about 14328.4005038944. The cubic root of 205303061 is about 589.9272734258.

Adding to 205303061 its reverse (160303502), we get a palindrome (365606563).

The spelling of 205303061 in words is "two hundred five million, three hundred three thousand, sixty-one".