1123712 has 16 divisors (see below), whose sum is σ = 2238900. Its totient is φ = 561792.

The previous prime is 1123709. The next prime is 1123729. The reversal of 1123712 is 2173211.

It is a tau number, because it is divible by the number of its divisors (16).

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, 4262 + ... + 4517.

2^1123712 is an apocalyptic number.

It is an amenable number.

1123712 is a deficient number, since it is larger than the sum of its proper divisors (1115188).

1123712 is an frugal number, since it uses more digits than its factorization.

1123712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8793 (or 8781 counting only the distinct ones).

The product of its digits is 84, while the sum is 17.

The square root of 1123712 is about 1060.0528288722. The cubic root of 1123712 is about 103.9644849147.

Adding to 1123712 its reverse (2173211), we get a palindrome (3296923).

The spelling of 1123712 in words is "one million, one hundred twenty-three thousand, seven hundred twelve".