1080813 has 4 divisors (see below), whose sum is σ = 1441088. Its totient is φ = 720540.

The previous prime is 1080811. The next prime is 1080817. The reversal of 1080813 is 3180801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1080813 - 2¹ = 1080811 is a prime.

It is a D-number.

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 1080813.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180133 + ... + 180138.

It is an arithmetic number, because the mean of its divisors is an integer number (360272).

2^1080813 is an apocalyptic number.

It is an amenable number.

1080813 is a deficient number, since it is larger than the sum of its proper divisors (360275).

1080813 is an equidigital number, since it uses as much as digits as its factorization.

1080813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360274.

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

The square root of 1080813 is about 1039.6215657632. The cubic root of 1080813 is about 102.6242949812.

The spelling of 1080813 in words is "one million, eighty thousand, eight hundred thirteen".