1223956 has 12 divisors (see below), whose sum is σ = 2174368. Its totient is φ = 602712.

The previous prime is 1223953. The next prime is 1223977. The reversal of 1223956 is 6593221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2016 + ... + 2551.

2^1223956 is an apocalyptic number.

It is an amenable number.

1223956 is a deficient number, since it is larger than the sum of its proper divisors (950412).

1223956 is a wasteful number, since it uses less digits than its factorization.

1223956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4638 (or 4636 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 1223956 is about 1106.3254494045. The cubic root of 1223956 is about 106.9683430383.

The spelling of 1223956 in words is "one million, two hundred twenty-three thousand, nine hundred fifty-six".