1080831 has 4 divisors (see below), whose sum is σ = 1441112. Its totient is φ = 720552.

The previous prime is 1080823. The next prime is 1080841. The reversal of 1080831 is 1380801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1380801 = 3 ⋅460267.

It is not a de Polignac number, because 1080831 - 2³ = 1080823 is a prime.

It is a super-2 number, since 2×1080831² = 2336391301122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1080798 and 1080807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080811) 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, 180136 + ... + 180141.

It is an arithmetic number, because the mean of its divisors is an integer number (360278).

2^1080831 is an apocalyptic number.

1080831 is a deficient number, since it is larger than the sum of its proper divisors (360281).

1080831 is an equidigital number, since it uses as much as digits as its factorization.

1080831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360280.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1080831 is about 1039.6302227234. The cubic root of 1080831 is about 102.6248646841.

The spelling of 1080831 in words is "one million, eighty thousand, eight hundred thirty-one".