1101843 has 20 divisors (see below), whose sum is σ = 1680448. Its totient is φ = 719280.

The previous prime is 1101839. The next prime is 1101851. The reversal of 1101843 is 3481011.

It is not a de Polignac number, because 1101843 - 2² = 1101839 is a prime.

It is a Duffinian 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 (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4830 + ... + 5052.

2^1101843 is an apocalyptic number.

1101843 is a deficient number, since it is larger than the sum of its proper divisors (578605).

1101843 is an equidigital number, since it uses as much as digits as its factorization.

1101843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1101843 is about 1049.6870962339. The cubic root of 1101843 is about 103.2856306586.

Adding to 1101843 its reverse (3481011), we get a palindrome (4582854).

It can be divided in two parts, 110 and 1843, that added together give a triangular number (1953 = T₆₂).

The spelling of 1101843 in words is "one million, one hundred one thousand, eight hundred forty-three".