1128375 has 48 divisors (see below), whose sum is σ = 2190240. Its totient is φ = 556800.

The previous prime is 1128373. The next prime is 1128383. The reversal of 1128375 is 5738211.

It is not a de Polignac number, because 1128375 - 2¹ = 1128373 is a prime.

Its product of digits (1680) is a multiple of the sum of its prime divisors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19096 + ... + 19154.

It is an arithmetic number, because the mean of its divisors is an integer number (45630).

2^1128375 is an apocalyptic number.

1128375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1128375 is a deficient number, since it is larger than the sum of its proper divisors (1061865).

1128375 is a wasteful number, since it uses less digits than its factorization.

1128375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 84 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1128375 is about 1062.2499705813. The cubic root of 1128375 is about 104.1080915126.

The spelling of 1128375 in words is "one million, one hundred twenty-eight thousand, three hundred seventy-five".