206226263 has 2 divisors, whose sum is σ = 206226264. Its totient is φ = 206226262.

The previous prime is 206226253. The next prime is 206226289. The reversal of 206226263 is 362622602.

It is a happy number.

206226263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206226263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206226253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103113131 + 103113132.

It is an arithmetic number, because the mean of its divisors is an integer number (103113132).

Almost surely, 2^206226263 is an apocalyptic number.

206226263 is a deficient number, since it is larger than the sum of its proper divisors (1).

206226263 is an equidigital number, since it uses as much as digits as its factorization.

206226263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 206226263 is about 14360.5801763021. The cubic root of 206226263 is about 590.8102083440.

Adding to 206226263 its reverse (362622602), we get a palindrome (568848865).

The spelling of 206226263 in words is "two hundred six million, two hundred twenty-six thousand, two hundred sixty-three".