142031543 has 2 divisors, whose sum is σ = 142031544. Its totient is φ = 142031542.

The previous prime is 142031521. The next prime is 142031551. The reversal of 142031543 is 345130241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142031543 - 2¹⁶ = 141966007 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 (142031563) 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, 71015771 + 71015772.

It is an arithmetic number, because the mean of its divisors is an integer number (71015772).

Almost surely, 2^142031543 is an apocalyptic number.

142031543 is a deficient number, since it is larger than the sum of its proper divisors (1).

142031543 is an equidigital number, since it uses as much as digits as its factorization.

142031543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 142031543 is about 11917.6987292010. The cubic root of 142031543 is about 521.7489716019.

Adding to 142031543 its reverse (345130241), we get a palindrome (487161784).

The spelling of 142031543 in words is "one hundred forty-two million, thirty-one thousand, five hundred forty-three".