131875732871 has 4 divisors (see below), whose sum is σ = 132100393992. Its totient is φ = 131651071752.

The previous prime is 131875732861. The next prime is 131875732873. The reversal of 131875732871 is 178237578131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131875732871 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 (131875732873) 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, 112329680 + ... + 112330853.

It is an arithmetic number, because the mean of its divisors is an integer number (33025098498).

Almost surely, 2^131875732871 is an apocalyptic number.

131875732871 is a deficient number, since it is larger than the sum of its proper divisors (224661121).

131875732871 is an equidigital number, since it uses as much as digits as its factorization.

131875732871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224661120.

The product of its digits is 1975680, while the sum is 53.

The spelling of 131875732871 in words is "one hundred thirty-one billion, eight hundred seventy-five million, seven hundred thirty-two thousand, eight hundred seventy-one".