1120845 has 16 divisors (see below), whose sum is σ = 1956672. Its totient is φ = 543360.

The previous prime is 1120837. The next prime is 1120849. The reversal of 1120845 is 5480211.

It is not a de Polignac number, because 1120845 - 2³ = 1120837 is a prime.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3232 + ... + 3561.

It is an arithmetic number, because the mean of its divisors is an integer number (122292).

2^1120845 is an apocalyptic number.

1120845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1120845 is a deficient number, since it is larger than the sum of its proper divisors (835827).

1120845 is a wasteful number, since it uses less digits than its factorization.

1120845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1120845 is about 1058.6996741286. The cubic root of 1120845 is about 103.8759924807.

The spelling of 1120845 in words is "one million, one hundred twenty thousand, eight hundred forty-five".