1117128 has 32 divisors (see below), whose sum is σ = 2829600. Its totient is φ = 367488.

The previous prime is 1117117. The next prime is 1117153. The reversal of 1117128 is 8217111.

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, 1875 + ... + 2397.

It is an arithmetic number, because the mean of its divisors is an integer number (88425).

2^1117128 is an apocalyptic number.

It is an amenable number.

1117128 is an abundant number, since it is smaller than the sum of its proper divisors (1712472).

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

1117128 is a wasteful number, since it uses less digits than its factorization.

1117128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 617 counting only the distinct ones).

The product of its digits is 112, while the sum is 21.

The square root of 1117128 is about 1056.9427609857. The cubic root of 1117128 is about 103.7610391312.

The spelling of 1117128 in words is "one million, one hundred seventeen thousand, one hundred twenty-eight".