1101806 has 4 divisors (see below), whose sum is σ = 1652712. Its totient is φ = 550902.

The previous prime is 1101803. The next prime is 1101811. The reversal of 1101806 is 6081011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6081011 = 317 ⋅19183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101803) 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 as a sum of consecutive naturals, namely, 275450 + ... + 275453.

It is an arithmetic number, because the mean of its divisors is an integer number (413178).

2^1101806 is an apocalyptic number.

1101806 is a deficient number, since it is larger than the sum of its proper divisors (550906).

1101806 is an equidigital number, since it uses as much as digits as its factorization.

1101806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550905.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1101806 is about 1049.6694717862. The cubic root of 1101806 is about 103.2844745317.

Adding to 1101806 its reverse (6081011), we get a palindrome (7182817).

The spelling of 1101806 in words is "one million, one hundred one thousand, eight hundred six".