206041334137 has 2 divisors, whose sum is σ = 206041334138. Its totient is φ = 206041334136.

The previous prime is 206041334123. The next prime is 206041334237. The reversal of 206041334137 is 731433140602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168195133456 + 37846200681 = 410116^2 + 194541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206041334137 is a prime.

It is not a weakly prime, because it can be changed into another prime (206041334237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103020667068 + 103020667069.

It is an arithmetic number, because the mean of its divisors is an integer number (103020667069).

Almost surely, 2^206041334137 is an apocalyptic number.

It is an amenable number.

206041334137 is a deficient number, since it is larger than the sum of its proper divisors (1).

206041334137 is an equidigital number, since it uses as much as digits as its factorization.

206041334137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 34.

Adding to 206041334137 its reverse (731433140602), we get a palindrome (937474474739).

The spelling of 206041334137 in words is "two hundred six billion, forty-one million, three hundred thirty-four thousand, one hundred thirty-seven".