131766143 has 4 divisors (see below), whose sum is σ = 131798400. Its totient is φ = 131733888.

The previous prime is 131766137. The next prime is 131766157. The reversal of 131766143 is 341667131.

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 131766143 - 2⁴ = 131766127 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 (131766443) 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, 8930 + ... + 18527.

It is an arithmetic number, because the mean of its divisors is an integer number (32949600).

Almost surely, 2^131766143 is an apocalyptic number.

131766143 is a deficient number, since it is larger than the sum of its proper divisors (32257).

131766143 is an equidigital number, since it uses as much as digits as its factorization.

131766143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32256.

The product of its digits is 9072, while the sum is 32.

The square root of 131766143 is about 11478.9434618348. The cubic root of 131766143 is about 508.8634732509.

The spelling of 131766143 in words is "one hundred thirty-one million, seven hundred sixty-six thousand, one hundred forty-three".