1108831 has 4 divisors (see below), whose sum is σ = 1113112. Its totient is φ = 1104552.

The previous prime is 1108823. The next prime is 1108867. The reversal of 1108831 is 1388011.

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

It is a cyclic number.

It is not a de Polignac number, because 1108831 - 2³ = 1108823 is a prime.

It is a super-2 number, since 2×1108831² = 2459012373122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1108801) 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, 1725 + ... + 2278.

It is an arithmetic number, because the mean of its divisors is an integer number (278278).

2^1108831 is an apocalyptic number.

1108831 is a deficient number, since it is larger than the sum of its proper divisors (4281).

1108831 is an equidigital number, since it uses as much as digits as its factorization.

1108831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4280.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 1108831 is about 1053.0104462920. The cubic root of 1108831 is about 103.5035199936.

Subtracting from 1108831 its sum of digits (22), we obtain a square (1108809 = 1053²).

The spelling of 1108831 in words is "one million, one hundred eight thousand, eight hundred thirty-one".