1223263 has 2 divisors, whose sum is σ = 1223264. Its totient is φ = 1223262.

The previous prime is 1223237. The next prime is 1223279. The reversal of 1223263 is 3623221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1223263 - 2⁵ = 1223231 is a prime.

1223263 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611631 + 611632.

It is an arithmetic number, because the mean of its divisors is an integer number (611632).

2^1223263 is an apocalyptic number.

1223263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223263 is an equidigital number, since it uses as much as digits as its factorization.

1223263 is an evil number, because the sum of its binary digits is even.

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

The square root of 1223263 is about 1106.0122060809. The cubic root of 1223263 is about 106.9481508482.

Adding to 1223263 its reverse (3623221), we get a palindrome (4846484).

The spelling of 1223263 in words is "one million, two hundred twenty-three thousand, two hundred sixty-three".