142336443 has 12 divisors (see below), whose sum is σ = 198394280. Its totient is φ = 90764256.

The previous prime is 142336399. The next prime is 142336459. The reversal of 142336443 is 344633241.

It is not a de Polignac number, because 142336443 - 2⁹ = 142335931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142336443.

It is not an unprimeable number, because it can be changed into a prime (142336483) 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 in 11 ways as a sum of consecutive naturals, for example, 43258 + ... + 46431.

Almost surely, 2^142336443 is an apocalyptic number.

142336443 is a deficient number, since it is larger than the sum of its proper divisors (56057837).

142336443 is an equidigital number, since it uses as much as digits as its factorization.

142336443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89738 (or 89715 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 142336443 is about 11930.4837705770. The cubic root of 142336443 is about 522.1220520226.

Adding to 142336443 its reverse (344633241), we get a palindrome (486969684).

The spelling of 142336443 in words is "one hundred forty-two million, three hundred thirty-six thousand, four hundred forty-three".