206742413 has 2 divisors, whose sum is σ = 206742414. Its totient is φ = 206742412.

The previous prime is 206742397. The next prime is 206742433. The reversal of 206742413 is 314247602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189420169 + 17322244 = 13763^2 + 4162^2 .

It is a cyclic number.

It is not a de Polignac number, because 206742413 - 2⁴ = 206742397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206742433) 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, 103371206 + 103371207.

It is an arithmetic number, because the mean of its divisors is an integer number (103371207).

Almost surely, 2^206742413 is an apocalyptic number.

It is an amenable number.

206742413 is a deficient number, since it is larger than the sum of its proper divisors (1).

206742413 is an equidigital number, since it uses as much as digits as its factorization.

206742413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 206742413 is about 14378.5400162882. The cubic root of 206742413 is about 591.3026975603.

The spelling of 206742413 in words is "two hundred six million, seven hundred forty-two thousand, four hundred thirteen".