131343143 has 4 divisors (see below), whose sum is σ = 138255960. Its totient is φ = 124430328.

The previous prime is 131343137. The next prime is 131343161. The reversal of 131343143 is 341343131.

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 131343143 - 2¹⁶ = 131277607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131343743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3456380 + ... + 3456417.

It is an arithmetic number, because the mean of its divisors is an integer number (34563990).

Almost surely, 2^131343143 is an apocalyptic number.

131343143 is a deficient number, since it is larger than the sum of its proper divisors (6912817).

131343143 is an equidigital number, since it uses as much as digits as its factorization.

131343143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6912816.

The product of its digits is 1296, while the sum is 23.

The square root of 131343143 is about 11460.5036102259. The cubic root of 131343143 is about 508.3183661155.

Adding to 131343143 its reverse (341343131), we get a palindrome (472686274).

The spelling of 131343143 in words is "one hundred thirty-one million, three hundred forty-three thousand, one hundred forty-three".