1109163 has 32 divisors (see below), whose sum is σ = 1785600. Its totient is φ = 604800.

The previous prime is 1109161. The next prime is 1109167. The reversal of 1109163 is 3619011.

It is a happy number.

It is not a de Polignac number, because 1109163 - 2¹ = 1109161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1109161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18153 + ... + 18213.

It is an arithmetic number, because the mean of its divisors is an integer number (55800).

2^1109163 is an apocalyptic number.

1109163 is a deficient number, since it is larger than the sum of its proper divisors (676437).

1109163 is a wasteful number, since it uses less digits than its factorization.

1109163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1109163 is about 1053.1680777540. The cubic root of 1109163 is about 103.5138491118.

The spelling of 1109163 in words is "one million, one hundred nine thousand, one hundred sixty-three".