206445413 has 2 divisors, whose sum is σ = 206445414. Its totient is φ = 206445412.

The previous prime is 206445397. The next prime is 206445419. The reversal of 206445413 is 314544602.

206445413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198866404 + 7579009 = 14102^2 + 2753^2 .

It is a cyclic number.

It is not a de Polignac number, because 206445413 - 2⁴ = 206445397 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 (206445419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103222706 + 103222707.

It is an arithmetic number, because the mean of its divisors is an integer number (103222707).

Almost surely, 2^206445413 is an apocalyptic number.

It is an amenable number.

206445413 is a deficient number, since it is larger than the sum of its proper divisors (1).

206445413 is an equidigital number, since it uses as much as digits as its factorization.

206445413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 206445413 is about 14368.2084130207. The cubic root of 206445413 is about 591.0194125760.

The spelling of 206445413 in words is "two hundred six million, four hundred forty-five thousand, four hundred thirteen".