206263 has 2 divisors, whose sum is σ = 206264. Its totient is φ = 206262.

The previous prime is 206251. The next prime is 206273. The reversal of 206263 is 362602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206263 is a prime.

206263 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 206263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103131 + 103132.

It is an arithmetic number, because the mean of its divisors is an integer number (103132).

2²⁰⁶²⁶³ is an apocalyptic number.

206263 is a deficient number, since it is larger than the sum of its proper divisors (1).

206263 is an equidigital number, since it uses as much as digits as its factorization.

206263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 206263 is about 454.1618654180. The cubic root of 206263 is about 59.0845288431.

Adding to 206263 its reverse (362602), we get a palindrome (568865).

The spelling of 206263 in words is "two hundred six thousand, two hundred sixty-three".