142322434 has 8 divisors (see below), whose sum is σ = 213643260. Its totient is φ = 71108016.

The previous prime is 142322399. The next prime is 142322443. The reversal of 142322434 is 434223241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 133471809 + 8850625 = 11553^2 + 2975^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 142322399 and 142322408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23169 + ... + 28660.

Almost surely, 2^142322434 is an apocalyptic number.

142322434 is a deficient number, since it is larger than the sum of its proper divisors (71320826).

142322434 is a wasteful number, since it uses less digits than its factorization.

142322434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53204.

The product of its digits is 4608, while the sum is 25.

The square root of 142322434 is about 11929.8966466604. The cubic root of 142322434 is about 522.1049220741.

Adding to 142322434 its reverse (434223241), we get a palindrome (576545675).

The spelling of 142322434 in words is "one hundred forty-two million, three hundred twenty-two thousand, four hundred thirty-four".