1108931 has 4 divisors (see below), whose sum is σ = 1147200. Its totient is φ = 1070664.

The previous prime is 1108909. The next prime is 1108957. The reversal of 1108931 is 1398011.

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 1108931 - 2⁶ = 1108867 is a prime.

It is a super-2 number, since 2×1108931² = 2459455925522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 1108897 and 1108906.

It is not an unprimeable number, because it can be changed into a prime (1101931) 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 3 ways as a sum of consecutive naturals, for example, 19091 + ... + 19148.

It is an arithmetic number, because the mean of its divisors is an integer number (286800).

2^1108931 is an apocalyptic number.

1108931 is a deficient number, since it is larger than the sum of its proper divisors (38269).

1108931 is an equidigital number, since it uses as much as digits as its factorization.

1108931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38268.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1108931 is about 1053.0579281312. The cubic root of 1108931 is about 103.5066313907.

The spelling of 1108931 in words is "one million, one hundred eight thousand, nine hundred thirty-one".