1115128 has 16 divisors (see below), whose sum is σ = 2389680. Its totient is φ = 477888.

The previous prime is 1115117. The next prime is 1115131. The reversal of 1115128 is 8215111.

It is a happy number.

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, 9901 + ... + 10012.

It is an arithmetic number, because the mean of its divisors is an integer number (149355).

2^1115128 is an apocalyptic number.

It is an amenable number.

1115128 is an abundant number, since it is smaller than the sum of its proper divisors (1274552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115128 is a wasteful number, since it uses less digits than its factorization.

1115128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19926 (or 19922 counting only the distinct ones).

The product of its digits is 80, while the sum is 19.

The square root of 1115128 is about 1055.9962121144. The cubic root of 1115128 is about 103.6990808345.

The spelling of 1115128 in words is "one million, one hundred fifteen thousand, one hundred twenty-eight".