1128835 has 4 divisors (see below), whose sum is σ = 1354608. Its totient is φ = 903064.

The previous prime is 1128823. The next prime is 1128889. The reversal of 1128835 is 5388211.

1128835 = T₈₆₆ + T₈₆₇ + T₈₆₈.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5388211 = 349 ⋅15439.

It is a cyclic number.

It is not a de Polignac number, because 1128835 - 2¹¹ = 1126787 is a prime.

It is an Ulam number.

It is a Duffinian number.

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, 112879 + ... + 112888.

It is an arithmetic number, because the mean of its divisors is an integer number (338652).

2^1128835 is an apocalyptic number.

1128835 is the 868-th centered triangular number.

1128835 is a deficient number, since it is larger than the sum of its proper divisors (225773).

1128835 is an equidigital number, since it uses as much as digits as its factorization.

1128835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225772.

The product of its digits is 1920, while the sum is 28.

The square root of 1128835 is about 1062.4664700592. The cubic root of 1128835 is about 104.1222366965.

The spelling of 1128835 in words is "one million, one hundred twenty-eight thousand, eight hundred thirty-five".