1080855 has 12 divisors (see below), whose sum is σ = 1873560. Its totient is φ = 576432.

The previous prime is 1080851. The next prime is 1080857. The reversal of 1080855 is 5580801.

It is not a de Polignac number, because 1080855 - 2² = 1080851 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11965 + ... + 12054.

It is an arithmetic number, because the mean of its divisors is an integer number (156130).

2^1080855 is an apocalyptic number.

1080855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1080855 is a deficient number, since it is larger than the sum of its proper divisors (792705).

1080855 is a wasteful number, since it uses less digits than its factorization.

1080855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24030 (or 24027 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1080855 is about 1039.6417652249. The cubic root of 1080855 is about 102.6256242782.

The spelling of 1080855 in words is "one million, eighty thousand, eight hundred fifty-five".