1105843 has 4 divisors (see below), whose sum is σ = 1111600. Its totient is φ = 1100088.

The previous prime is 1105823. The next prime is 1105847. The reversal of 1105843 is 3485011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1105843 - 2¹³ = 1097651 is a prime.

It is a Duffinian number.

1105843 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1105847) 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 in 3 ways as a sum of consecutive naturals, for example, 2580 + ... + 2977.

It is an arithmetic number, because the mean of its divisors is an integer number (277900).

2^1105843 is an apocalyptic number.

1105843 is a deficient number, since it is larger than the sum of its proper divisors (5757).

1105843 is an equidigital number, since it uses as much as digits as its factorization.

1105843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1105843 is about 1051.5906998448. The cubic root of 1105843 is about 103.4104650156.

The spelling of 1105843 in words is "one million, one hundred five thousand, eight hundred forty-three".