142135422 has 48 divisors (see below), whose sum is σ = 335829888. Its totient is φ = 39755040.

The previous prime is 142135373. The next prime is 142135459. The reversal of 142135422 is 224531241.

142135422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 142135392 and 142135401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4783 + ... + 17525.

It is an arithmetic number, because the mean of its divisors is an integer number (6996456).

Almost surely, 2^142135422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142135422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167914944).

142135422 is an abundant number, since it is smaller than the sum of its proper divisors (193694466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142135422 is a wasteful number, since it uses less digits than its factorization.

142135422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12785 (or 12772 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 142135422 is about 11922.0561146138. The cubic root of 142135422 is about 521.8761394886.

Adding to 142135422 its reverse (224531241), we get a palindrome (366666663).

The spelling of 142135422 in words is "one hundred forty-two million, one hundred thirty-five thousand, four hundred twenty-two".