1088565 has 16 divisors (see below), whose sum is σ = 1798656. Its totient is φ = 561600.

The previous prime is 1088543. The next prime is 1088569. The reversal of 1088565 is 5658801.

It is not a de Polignac number, because 1088565 - 2⁵ = 1088533 is a prime.

1088565 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1088569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706 + ... + 1635.

It is an arithmetic number, because the mean of its divisors is an integer number (112416).

2^1088565 is an apocalyptic number.

1088565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1088565 is a deficient number, since it is larger than the sum of its proper divisors (710091).

1088565 is a wasteful number, since it uses less digits than its factorization.

1088565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 1088565 is about 1043.3431841920. The cubic root of 1088565 is about 102.8690641496.

It can be divided in two parts, 1088 and 565, that added together give a triangular number (1653 = T₅₇).

The spelling of 1088565 in words is "one million, eighty-eight thousand, five hundred sixty-five".