131040443 has 8 divisors (see below), whose sum is σ = 132283200. Its totient is φ = 129802248.

The previous prime is 131040389. The next prime is 131040457. The reversal of 131040443 is 344040131.

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 131040443 - 2²⁰ = 129991867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131045443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85280 + ... + 86802.

It is an arithmetic number, because the mean of its divisors is an integer number (16535400).

Almost surely, 2^131040443 is an apocalyptic number.

131040443 is a deficient number, since it is larger than the sum of its proper divisors (1242757).

131040443 is a wasteful number, since it uses less digits than its factorization.

131040443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 131040443 is about 11447.2897665779. The cubic root of 131040443 is about 507.9275670695.

Adding to 131040443 its reverse (344040131), we get a palindrome (475080574).

The spelling of 131040443 in words is "one hundred thirty-one million, forty thousand, four hundred forty-three".