131444224543 has 4 divisors (see below), whose sum is σ = 135976784040. Its totient is φ = 126911665048.

The previous prime is 131444224531. The next prime is 131444224547. The reversal of 131444224543 is 345422444131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 131444224543 - 2¹⁷ = 131444093471 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 (131444224547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2266279705 + ... + 2266279762.

It is an arithmetic number, because the mean of its divisors is an integer number (33994196010).

Almost surely, 2^131444224543 is an apocalyptic number.

131444224543 is a deficient number, since it is larger than the sum of its proper divisors (4532559497).

131444224543 is an equidigital number, since it uses as much as digits as its factorization.

131444224543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532559496.

The product of its digits is 184320, while the sum is 37.

Adding to 131444224543 its reverse (345422444131), we get a palindrome (476866668674).

The spelling of 131444224543 in words is "one hundred thirty-one billion, four hundred forty-four million, two hundred twenty-four thousand, five hundred forty-three".