131143443 has 16 divisors (see below), whose sum is σ = 176647680. Its totient is φ = 86539104.

The previous prime is 131143433. The next prime is 131143451. The reversal of 131143443 is 344341131.

It is not a de Polignac number, because 131143443 - 2⁴ = 131143427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131143433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182038 + ... + 182756.

It is an arithmetic number, because the mean of its divisors is an integer number (11040480).

Almost surely, 2^131143443 is an apocalyptic number.

131143443 is a deficient number, since it is larger than the sum of its proper divisors (45504237).

131143443 is a wasteful number, since it uses less digits than its factorization.

131143443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258.

The product of its digits is 1728, while the sum is 24.

The square root of 131143443 is about 11451.7877643624. The cubic root of 131143443 is about 508.0606120973.

Adding to 131143443 its reverse (344341131), we get a palindrome (475484574).

The spelling of 131143443 in words is "one hundred thirty-one million, one hundred forty-three thousand, four hundred forty-three".