1123256 has 8 divisors (see below), whose sum is σ = 2106120. Its totient is φ = 561624.

The previous prime is 1123247. The next prime is 1123267. The reversal of 1123256 is 6523211.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70196 + ... + 70211.

It is an arithmetic number, because the mean of its divisors is an integer number (263265).

2^1123256 is an apocalyptic number.

It is an amenable number.

1123256 is a deficient number, since it is larger than the sum of its proper divisors (982864).

1123256 is a wasteful number, since it uses less digits than its factorization.

1123256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140413 (or 140409 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 1123256 is about 1059.8377234275. The cubic root of 1123256 is about 103.9504201546.

Adding to 1123256 its reverse (6523211), we get a palindrome (7646467).

The spelling of 1123256 in words is "one million, one hundred twenty-three thousand, two hundred fifty-six".