491103 has 24 divisors (see below), whose sum is σ = 768768. Its totient is φ = 312984.

The previous prime is 491083. The next prime is 491129. The reversal of 491103 is 301194.

It is not a de Polignac number, because 491103 - 2⁶ = 491039 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491103.

It is not an unprimeable number, because it can be changed into a prime (491003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10426 + ... + 10472.

It is an arithmetic number, because the mean of its divisors is an integer number (32032).

2⁴⁹¹¹⁰³ is an apocalyptic number.

491103 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

491103 is a deficient number, since it is larger than the sum of its proper divisors (277665).

491103 is an equidigital number, since it uses as much as digits as its factorization.

491103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 491103 is about 700.7874142705. The cubic root of 491103 is about 78.8964621294.

Adding to 491103 its reverse (301194), we get a palindrome (792297).

The spelling of 491103 in words is "four hundred ninety-one thousand, one hundred three".