1089535 has 4 divisors (see below), whose sum is σ = 1307448. Its totient is φ = 871624.

The previous prime is 1089523. The next prime is 1089551. The reversal of 1089535 is 5359801.

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 1089535 - 2⁵ = 1089503 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1089497 and 1089506.

It is a congruent 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, 108949 + ... + 108958.

It is an arithmetic number, because the mean of its divisors is an integer number (326862).

2^1089535 is an apocalyptic number.

1089535 is a deficient number, since it is larger than the sum of its proper divisors (217913).

1089535 is an equidigital number, since it uses as much as digits as its factorization.

1089535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217912.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1089535 is about 1043.8079325240. The cubic root of 1089535 is about 102.8996099809.

The spelling of 1089535 in words is "one million, eighty-nine thousand, five hundred thirty-five".