1118166 has 32 divisors (see below), whose sum is σ = 2595840. Its totient is φ = 314496.

The previous prime is 1118149. The next prime is 1118189. The reversal of 1118166 is 6618111.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3150 + ... + 3486.

It is an arithmetic number, because the mean of its divisors is an integer number (81120).

2^1118166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1297920).

1118166 is an abundant number, since it is smaller than the sum of its proper divisors (1477674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1118166 is a wasteful number, since it uses less digits than its factorization.

1118166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its digits is 288, while the sum is 24.

The square root of 1118166 is about 1057.4336858640. The cubic root of 1118166 is about 103.7931663412.

Subtracting 1118166 from its reverse (6618111), we obtain a palindrome (5499945).

The spelling of 1118166 in words is "one million, one hundred eighteen thousand, one hundred sixty-six".