131443443 has 12 divisors (see below), whose sum is σ = 193903008. Its totient is φ = 85764240.

The previous prime is 131443409. The next prime is 131443447. The reversal of 131443443 is 344344131.

131443443 is a `hidden beast` number, since 1 + 314 + 4 + 344 + 3 = 666.

It is not a de Polignac number, because 131443443 - 2¹³ = 131435251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131443447) 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, 154948 + ... + 155793.

It is an arithmetic number, because the mean of its divisors is an integer number (16158584).

Almost surely, 2^131443443 is an apocalyptic number.

131443443 is a deficient number, since it is larger than the sum of its proper divisors (62459565).

131443443 is a wasteful number, since it uses less digits than its factorization.

131443443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310794 (or 310791 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 131443443 is about 11464.8786735839. The cubic root of 131443443 is about 508.4477253862.

Adding to 131443443 its reverse (344344131), we get a palindrome (475787574).

The spelling of 131443443 in words is "one hundred thirty-one million, four hundred forty-three thousand, four hundred forty-three".