142342443 has 6 divisors (see below), whose sum is σ = 205605764. Its totient is φ = 94894956.

The previous prime is 142342391. The next prime is 142342457. The reversal of 142342443 is 344243241.

It is a happy number.

It is not a de Polignac number, because 142342443 - 2⁶ = 142342379 is a prime.

It is a super-2 number, since 2×142342443² = 40522742158416498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142342493) 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 5 ways as a sum of consecutive naturals, for example, 7907905 + ... + 7907922.

Almost surely, 2^142342443 is an apocalyptic number.

142342443 is a deficient number, since it is larger than the sum of its proper divisors (63263321).

142342443 is a wasteful number, since it uses less digits than its factorization.

142342443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15815833 (or 15815830 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 142342443 is about 11930.7352246205. The cubic root of 142342443 is about 522.1293883688.

Adding to 142342443 its reverse (344243241), we get a palindrome (486585684).

The spelling of 142342443 in words is "one hundred forty-two million, three hundred forty-two thousand, four hundred forty-three".