1128895 has 4 divisors (see below), whose sum is σ = 1354680. Its totient is φ = 903112.

The previous prime is 1128889. The next prime is 1128899. The reversal of 1128895 is 5988211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1128895 - 2⁹ = 1128383 is a prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1128895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128899) 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 3 ways as a sum of consecutive naturals, for example, 112885 + ... + 112894.

It is an arithmetic number, because the mean of its divisors is an integer number (338670).

2^1128895 is an apocalyptic number.

1128895 is a deficient number, since it is larger than the sum of its proper divisors (225785).

1128895 is an equidigital number, since it uses as much as digits as its factorization.

1128895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225784.

The product of its digits is 5760, while the sum is 34.

The square root of 1128895 is about 1062.4947058692. The cubic root of 1128895 is about 104.1240814372.

The spelling of 1128895 in words is "one million, one hundred twenty-eight thousand, eight hundred ninety-five".