1128856 has 8 divisors (see below), whose sum is σ = 2116620. Its totient is φ = 564424.

The previous prime is 1128823. The next prime is 1128889. The reversal of 1128856 is 6588211.

It is an interprime number because it is at equal distance from previous prime (1128823) and next prime (1128889).

It is a tau number, because it is divible by the number of its divisors (8).

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, 70546 + ... + 70561.

2^1128856 is an apocalyptic number.

It is an amenable number.

1128856 is a deficient number, since it is larger than the sum of its proper divisors (987764).

1128856 is a wasteful number, since it uses less digits than its factorization.

1128856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141113 (or 141109 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 1128856 is about 1062.4763526780. The cubic root of 1128856 is about 104.1228823632.

The spelling of 1128856 in words is "one million, one hundred twenty-eight thousand, eight hundred fifty-six".