1811106 has 32 divisors (see below), whose sum is σ = 4392000. Its totient is φ = 548640.

The previous prime is 1811083. The next prime is 1811107. The reversal of 1811106 is 6011181.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1811107) 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, 931 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (137250).

2^1811106 is an apocalyptic number.

1811106 is an abundant number, since it is smaller than the sum of its proper divisors (2580894).

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

1811106 is a wasteful number, since it uses less digits than its factorization.

1811106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071 (or 3065 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 1811106 is about 1345.7733835977. The cubic root of 1811106 is about 121.8937083706.

Adding to 1811106 its reverse (6011181), we get a palindrome (7822287).

The spelling of 1811106 in words is "one million, eight hundred eleven thousand, one hundred six".