1108911 has 4 divisors (see below), whose sum is σ = 1478552. Its totient is φ = 739272.

The previous prime is 1108909. The next prime is 1108957. The reversal of 1108911 is 1198011.

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

It is not a de Polignac number, because 1108911 - 2¹ = 1108909 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

1108911 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1108711) 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, 184816 + ... + 184821.

It is an arithmetic number, because the mean of its divisors is an integer number (369638).

2^1108911 is an apocalyptic number.

1108911 is a deficient number, since it is larger than the sum of its proper divisors (369641).

1108911 is an equidigital number, since it uses as much as digits as its factorization.

1108911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369640.

The product of its (nonzero) digits is 72, while the sum is 21.

The square root of 1108911 is about 1053.0484319346. The cubic root of 1108911 is about 103.5060091262.

The spelling of 1108911 in words is "one million, one hundred eight thousand, nine hundred eleven".