1081873 has 4 divisors (see below), whose sum is σ = 1165108. Its totient is φ = 998640.

The previous prime is 1081859. The next prime is 1081891. The reversal of 1081873 is 3781801.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 321489 + 760384 = 567^2 + 872^2 .

It is a cyclic number.

It is not a de Polignac number, because 1081873 - 2⁹ = 1081361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1081813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41598 + ... + 41623.

It is an arithmetic number, because the mean of its divisors is an integer number (291277).

2^1081873 is an apocalyptic number.

1081873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1081873 is a deficient number, since it is larger than the sum of its proper divisors (83235).

1081873 is an equidigital number, since it uses as much as digits as its factorization.

1081873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83234.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 1081873 is about 1040.1312417190. The cubic root of 1081873 is about 102.6578333792.

The spelling of 1081873 in words is "one million, eighty-one thousand, eight hundred seventy-three".