131330143 has 12 divisors (see below), whose sum is σ = 154352352. Its totient is φ = 111404160.

The previous prime is 131330137. The next prime is 131330149. The reversal of 131330143 is 341033131.

It is an interprime number because it is at equal distance from previous prime (131330137) and next prime (131330149).

It is not a de Polignac number, because 131330143 - 2¹³ = 131321951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131330143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131330149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9063 + ... + 18568.

It is an arithmetic number, because the mean of its divisors is an integer number (12862696).

Almost surely, 2^131330143 is an apocalyptic number.

131330143 is a deficient number, since it is larger than the sum of its proper divisors (23022209).

131330143 is an equidigital number, since it uses as much as digits as its factorization.

131330143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27742 (or 27735 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 131330143 is about 11459.9364308883. The cubic root of 131330143 is about 508.3015948890.

Adding to 131330143 its reverse (341033131), we get a palindrome (472363274).

The spelling of 131330143 in words is "one hundred thirty-one million, three hundred thirty thousand, one hundred forty-three".