223665263 has 2 divisors, whose sum is σ = 223665264. Its totient is φ = 223665262.

The previous prime is 223665251. The next prime is 223665269. The reversal of 223665263 is 362566322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223665263 - 2⁸ = 223665007 is a prime.

It is a super-2 number, since 2×223665263² = 100052299745718338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223665269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111832631 + 111832632.

It is an arithmetic number, because the mean of its divisors is an integer number (111832632).

Almost surely, 2^223665263 is an apocalyptic number.

223665263 is a deficient number, since it is larger than the sum of its proper divisors (1).

223665263 is an equidigital number, since it uses as much as digits as its factorization.

223665263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 35.

The square root of 223665263 is about 14955.4425879009. The cubic root of 223665263 is about 607.0151260947.

The spelling of 223665263 in words is "two hundred twenty-three million, six hundred sixty-five thousand, two hundred sixty-three".