131142143 has 4 divisors (see below), whose sum is σ = 143064168. Its totient is φ = 119220120.

The previous prime is 131142127. The next prime is 131142163. The reversal of 131142143 is 341241131.

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 131142143 - 2⁴ = 131142127 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 (131142103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5960996 + ... + 5961017.

It is an arithmetic number, because the mean of its divisors is an integer number (35766042).

Almost surely, 2^131142143 is an apocalyptic number.

131142143 is a deficient number, since it is larger than the sum of its proper divisors (11922025).

131142143 is a wasteful number, since it uses less digits than its factorization.

131142143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11922024.

The product of its digits is 288, while the sum is 20.

The square root of 131142143 is about 11451.7310045250. The cubic root of 131142143 is about 508.0589333224.

Adding to 131142143 its reverse (341241131), we get a palindrome (472383274).

The spelling of 131142143 in words is "one hundred thirty-one million, one hundred forty-two thousand, one hundred forty-three".