131587143 has 12 divisors (see below), whose sum is σ = 177455928. Its totient is φ = 86724400.

The previous prime is 131587139. The next prime is 131587153. The reversal of 131587143 is 341785131.

It is not a de Polignac number, because 131587143 - 2² = 131587139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131587153) 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, 199348 + ... + 200006.

It is an arithmetic number, because the mean of its divisors is an integer number (14787994).

Almost surely, 2^131587143 is an apocalyptic number.

131587143 is a deficient number, since it is larger than the sum of its proper divisors (45868785).

131587143 is an frugal number, since it uses more digits than its factorization.

131587143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422 (or 763 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 131587143 is about 11471.1439272637. The cubic root of 131587143 is about 508.6329440299.

It can be divided in two parts, 13158 and 7143, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 131587143 in words is "one hundred thirty-one million, five hundred eighty-seven thousand, one hundred forty-three".