1123646 has 16 divisors (see below), whose sum is σ = 1759968. Its totient is φ = 537600.

The previous prime is 1123637. The next prime is 1123651. The reversal of 1123646 is 6463211.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5726 + ... + 5918.

It is an arithmetic number, because the mean of its divisors is an integer number (109998).

2^1123646 is an apocalyptic number.

1123646 is a deficient number, since it is larger than the sum of its proper divisors (636322).

1123646 is a wasteful number, since it uses less digits than its factorization.

1123646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307.

The product of its digits is 864, while the sum is 23.

The square root of 1123646 is about 1060.0216978911. The cubic root of 1123646 is about 103.9624494613.

Adding to 1123646 its reverse (6463211), we get a palindrome (7586857).

The spelling of 1123646 in words is "one million, one hundred twenty-three thousand, six hundred forty-six".