131424143 has 4 divisors (see below), whose sum is σ = 135956040. Its totient is φ = 126892248.

The previous prime is 131424119. The next prime is 131424169. The reversal of 131424143 is 341424131.

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 131424143 - 2¹⁶ = 131358607 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 (131424103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2265905 + ... + 2265962.

It is an arithmetic number, because the mean of its divisors is an integer number (33989010).

Almost surely, 2^131424143 is an apocalyptic number.

131424143 is a deficient number, since it is larger than the sum of its proper divisors (4531897).

131424143 is an equidigital number, since it uses as much as digits as its factorization.

131424143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531896.

The product of its digits is 1152, while the sum is 23.

The square root of 131424143 is about 11464.0369416711. The cubic root of 131424143 is about 508.4228388363.

Adding to 131424143 its reverse (341424131), we get a palindrome (472848274).

The spelling of 131424143 in words is "one hundred thirty-one million, four hundred twenty-four thousand, one hundred forty-three".