131340343 has 8 divisors (see below), whose sum is σ = 138181680. Its totient is φ = 124672320.

The previous prime is 131340329. The next prime is 131340367. The reversal of 131340343 is 343043131.

It is a happy number.

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 131340343 - 2⁵ = 131340311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131340383) 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, 41773 + ... + 44806.

It is an arithmetic number, because the mean of its divisors is an integer number (17272710).

Almost surely, 2^131340343 is an apocalyptic number.

131340343 is a deficient number, since it is larger than the sum of its proper divisors (6841337).

131340343 is an equidigital number, since it uses as much as digits as its factorization.

131340343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86657.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 131340343 is about 11460.3814508942. The cubic root of 131340343 is about 508.3147539448.

Adding to 131340343 its reverse (343043131), we get a palindrome (474383474).

The spelling of 131340343 in words is "one hundred thirty-one million, three hundred forty thousand, three hundred forty-three".