1108865 has 4 divisors (see below), whose sum is σ = 1330644. Its totient is φ = 887088.

The previous prime is 1108823. The next prime is 1108867. The reversal of 1108865 is 5688011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 494209 + 614656 = 703^2 + 784^2 .

It is a cyclic number.

It is not a de Polignac number, because 1108865 - 2⁶ = 1108801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1108867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110882 + ... + 110891.

It is an arithmetic number, because the mean of its divisors is an integer number (332661).

2^1108865 is an apocalyptic number.

It is an amenable number.

1108865 is a deficient number, since it is larger than the sum of its proper divisors (221779).

1108865 is an equidigital number, since it uses as much as digits as its factorization.

1108865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221778.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 1108865 is about 1053.0265903575. The cubic root of 1108865 is about 103.5045778896.

It can be divided in two parts, 1108 and 865, that multiplied together give a triangular number (958420 = T₁₃₈₄).

The spelling of 1108865 in words is "one million, one hundred eight thousand, eight hundred sixty-five".