1121128 has 16 divisors (see below), whose sum is σ = 2113380. Its totient is φ = 557568.

The previous prime is 1121101. The next prime is 1121143. The reversal of 1121128 is 8211211.

It can be written as a sum of positive squares in 2 ways, for example, as 1119364 + 1764 = 1058^2 + 42^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2626 + ... + 3022.

2^1121128 is an apocalyptic number.

It is an amenable number.

1121128 is a deficient number, since it is larger than the sum of its proper divisors (992252).

1121128 is a wasteful number, since it uses less digits than its factorization.

1121128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 752 counting only the distinct ones).

The product of its digits is 32, while the sum is 16.

The square root of 1121128 is about 1058.8333202162. The cubic root of 1121128 is about 103.8847342282.

Adding to 1121128 its reverse (8211211), we get a palindrome (9332339).

The spelling of 1121128 in words is "one million, one hundred twenty-one thousand, one hundred twenty-eight".