142044543 has 8 divisors (see below), whose sum is σ = 210436400. Its totient is φ = 94696344.

The previous prime is 142044521. The next prime is 142044559. The reversal of 142044543 is 345440241.

It is a happy number.

142044543 is a `hidden beast` number, since 1 + 4 + 204 + 454 + 3 = 666.

It is not a de Polignac number, because 142044543 - 2¹³ = 142036351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5260909 = 142044543 / (1 + 4 + 2 + 0 + 4 + 4 + 5 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142044593) 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 7 ways as a sum of consecutive naturals, for example, 2630428 + ... + 2630481.

It is an arithmetic number, because the mean of its divisors is an integer number (26304550).

Almost surely, 2^142044543 is an apocalyptic number.

142044543 is a deficient number, since it is larger than the sum of its proper divisors (68391857).

142044543 is an equidigital number, since it uses as much as digits as its factorization.

142044543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260918 (or 5260912 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 142044543 is about 11918.2441240310. The cubic root of 142044543 is about 521.7648894972.

Adding to 142044543 its reverse (345440241), we get a palindrome (487484784).

The spelling of 142044543 in words is "one hundred forty-two million, forty-four thousand, five hundred forty-three".