1122724 has 6 divisors (see below), whose sum is σ = 1964774. Its totient is φ = 561360.

The previous prime is 1122721. The next prime is 1122739. The reversal of 1122724 is 4272211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 589824 + 532900 = 768^2 + 730^2 .

It is not an unprimeable number, because it can be changed into a prime (1122721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140337 + ... + 140344.

2^1122724 is an apocalyptic number.

It is an amenable number.

1122724 is a deficient number, since it is larger than the sum of its proper divisors (842050).

1122724 is a wasteful number, since it uses less digits than its factorization.

1122724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280685 (or 280683 counting only the distinct ones).

The product of its digits is 224, while the sum is 19.

The square root of 1122724 is about 1059.5867118835. The cubic root of 1122724 is about 103.9340064559.

Adding to 1122724 its reverse (4272211), we get a palindrome (5394935).

The spelling of 1122724 in words is "one million, one hundred twenty-two thousand, seven hundred twenty-four".