1223256 has 16 divisors (see below), whose sum is σ = 3058200. Its totient is φ = 407744.

The previous prime is 1223237. The next prime is 1223263. The reversal of 1223256 is 6523221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25461 + ... + 25508.

2^1223256 is an apocalyptic number.

It is an amenable number.

1223256 is an abundant number, since it is smaller than the sum of its proper divisors (1834944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223256 is a wasteful number, since it uses less digits than its factorization.

1223256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50978 (or 50974 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 1223256 is about 1106.0090415544. The cubic root of 1223256 is about 106.9479468478.

Adding to 1223256 its reverse (6523221), we get a palindrome (7746477).

The spelling of 1223256 in words is "one million, two hundred twenty-three thousand, two hundred fifty-six".