131372443 has 4 divisors (see below), whose sum is σ = 131613160. Its totient is φ = 131131728.

The previous prime is 131372429. The next prime is 131372453. The reversal of 131372443 is 344273131.

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

It is a cyclic number.

It is not a de Polignac number, because 131372443 - 2¹³ = 131364251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131372453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119538 + ... + 120631.

It is an arithmetic number, because the mean of its divisors is an integer number (32903290).

Almost surely, 2^131372443 is an apocalyptic number.

131372443 is a deficient number, since it is larger than the sum of its proper divisors (240717).

131372443 is an equidigital number, since it uses as much as digits as its factorization.

131372443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240716.

The product of its digits is 6048, while the sum is 28.

The square root of 131372443 is about 11461.7818422791. The cubic root of 131372443 is about 508.3561618223.

The spelling of 131372443 in words is "one hundred thirty-one million, three hundred seventy-two thousand, four hundred forty-three".