131361143 has 2 divisors, whose sum is σ = 131361144. Its totient is φ = 131361142.

The previous prime is 131361133. The next prime is 131361169. The reversal of 131361143 is 341163131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131361143 - 2⁴ = 131361127 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131361133) 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 as a sum of consecutive naturals, namely, 65680571 + 65680572.

It is an arithmetic number, because the mean of its divisors is an integer number (65680572).

Almost surely, 2^131361143 is an apocalyptic number.

131361143 is a deficient number, since it is larger than the sum of its proper divisors (1).

131361143 is an equidigital number, since it uses as much as digits as its factorization.

131361143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 131361143 is about 11461.2888891259. The cubic root of 131361143 is about 508.3415859868.

The spelling of 131361143 in words is "one hundred thirty-one million, three hundred sixty-one thousand, one hundred forty-three".