131530803 has 4 divisors (see below), whose sum is σ = 175374408. Its totient is φ = 87687200.

The previous prime is 131530783. The next prime is 131530831. The reversal of 131530803 is 308035131.

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 131530803 - 2⁹ = 131530291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131530843) 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, 21921798 + ... + 21921803.

It is an arithmetic number, because the mean of its divisors is an integer number (43843602).

Almost surely, 2^131530803 is an apocalyptic number.

131530803 is a deficient number, since it is larger than the sum of its proper divisors (43843605).

131530803 is an equidigital number, since it uses as much as digits as its factorization.

131530803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43843604.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 131530803 is about 11468.6879371618. The cubic root of 131530803 is about 508.5603420259.

Adding to 131530803 its reverse (308035131), we get a palindrome (439565934).

The spelling of 131530803 in words is "one hundred thirty-one million, five hundred thirty thousand, eight hundred three".