1120843 has 4 divisors (see below), whose sum is σ = 1137640. Its totient is φ = 1104048.

The previous prime is 1120837. The next prime is 1120849. The reversal of 1120843 is 3480211.

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

It is an interprime number because it is at equal distance from previous prime (1120837) and next prime (1120849).

It is a cyclic number.

It is not a de Polignac number, because 1120843 - 2⁵ = 1120811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1120843.

It is not an unprimeable number, because it can be changed into a prime (1120849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8298 + ... + 8431.

It is an arithmetic number, because the mean of its divisors is an integer number (284410).

2^1120843 is an apocalyptic number.

1120843 is a deficient number, since it is larger than the sum of its proper divisors (16797).

1120843 is an equidigital number, since it uses as much as digits as its factorization.

1120843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16796.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1120843 is about 1058.6987295732. The cubic root of 1120843 is about 103.8759306963.

The spelling of 1120843 in words is "one million, one hundred twenty thousand, eight hundred forty-three".