206935249 has 2 divisors, whose sum is σ = 206935250. Its totient is φ = 206935248.

The previous prime is 206935189. The next prime is 206935279. The reversal of 206935249 is 942539602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158382225 + 48553024 = 12585^2 + 6968^2 .

It is a cyclic number.

It is not a de Polignac number, because 206935249 - 2¹¹ = 206933201 is a prime.

It is not a weakly prime, because it can be changed into another prime (206935279) 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, 103467624 + 103467625.

It is an arithmetic number, because the mean of its divisors is an integer number (103467625).

Almost surely, 2^206935249 is an apocalyptic number.

It is an amenable number.

206935249 is a deficient number, since it is larger than the sum of its proper divisors (1).

206935249 is an equidigital number, since it uses as much as digits as its factorization.

206935249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 206935249 is about 14385.2441411330. The cubic root of 206935249 is about 591.4864834482.

The spelling of 206935249 in words is "two hundred six million, nine hundred thirty-five thousand, two hundred forty-nine".