206013061 has 2 divisors, whose sum is σ = 206013062. Its totient is φ = 206013060.

The previous prime is 206013053. The next prime is 206013083. The reversal of 206013061 is 160310602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145950561 + 60062500 = 12081^2 + 7750^2 .

It is a cyclic number.

It is not a de Polignac number, because 206013061 - 2³ = 206013053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206013091) 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, 103006530 + 103006531.

It is an arithmetic number, because the mean of its divisors is an integer number (103006531).

Almost surely, 2^206013061 is an apocalyptic number.

It is an amenable number.

206013061 is a deficient number, since it is larger than the sum of its proper divisors (1).

206013061 is an equidigital number, since it uses as much as digits as its factorization.

206013061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 206013061 is about 14353.1550886904. The cubic root of 206013061 is about 590.6065398932.

Adding to 206013061 its reverse (160310602), we get a palindrome (366323663).

The spelling of 206013061 in words is "two hundred six million, thirteen thousand, sixty-one".