131224143 has 16 divisors (see below), whose sum is σ = 177835616. Its totient is φ = 86054400.

The previous prime is 131224097. The next prime is 131224157. The reversal of 131224143 is 341422131.

It is not a de Polignac number, because 131224143 - 2⁸ = 131223887 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 (131224183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131121 + ... + 132117.

It is an arithmetic number, because the mean of its divisors is an integer number (11114726).

Almost surely, 2^131224143 is an apocalyptic number.

131224143 is a deficient number, since it is larger than the sum of its proper divisors (46611473).

131224143 is an equidigital number, since it uses as much as digits as its factorization.

131224143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674.

The product of its digits is 576, while the sum is 21.

The square root of 131224143 is about 11455.3106898067. The cubic root of 131224143 is about 508.1648035673.

Adding to 131224143 its reverse (341422131), we get a palindrome (472646274).

The spelling of 131224143 in words is "one hundred thirty-one million, two hundred twenty-four thousand, one hundred forty-three".