131803 has 8 divisors (see below), whose sum is σ = 158720. Its totient is φ = 106920.

The previous prime is 131797. The next prime is 131837. The reversal of 131803 is 308131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131803 - 2⁵ = 131771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363 + ... + 628.

It is an arithmetic number, because the mean of its divisors is an integer number (19840).

2¹³¹⁸⁰³ is an apocalyptic number.

131803 is a deficient number, since it is larger than the sum of its proper divisors (26917).

131803 is an equidigital number, since it uses as much as digits as its factorization.

131803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 131803 is about 363.0468289353. The cubic root of 131803 is about 50.8910914453.

Adding to 131803 its reverse (308131), we get a palindrome (439934).

The spelling of 131803 in words is "one hundred thirty-one thousand, eight hundred three".