1089128 has 16 divisors (see below), whose sum is σ = 2062500. Its totient is φ = 539136.

The previous prime is 1089113. The next prime is 1089133. The reversal of 1089128 is 8219801.

It can be written as a sum of positive squares in 2 ways, for example, as 1085764 + 3364 = 1042^2 + 58^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1089128.

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, 248 + ... + 1496.

2^1089128 is an apocalyptic number.

It is an amenable number.

1089128 is a deficient number, since it is larger than the sum of its proper divisors (973372).

1089128 is a wasteful number, since it uses less digits than its factorization.

1089128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 1360 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 1089128 is about 1043.6129550748. The cubic root of 1089128 is about 102.8867955364.

The spelling of 1089128 in words is "one million, eighty-nine thousand, one hundred twenty-eight".