142330122 has 120 divisors (see below), whose sum is σ = 359775108. Its totient is φ = 42007680.

The previous prime is 142330117. The next prime is 142330163. The reversal of 142330122 is 221033241.

It can be written as a sum of positive squares in 2 ways, for example, as 138791961 + 3538161 = 11781^2 + 1881^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 142330095 and 142330104.

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 59 ways as a sum of consecutive naturals, for example, 1038838 + ... + 1038974.

Almost surely, 2^142330122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142330122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179887554).

142330122 is an abundant number, since it is smaller than the sum of its proper divisors (217444986).

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

142330122 is a wasteful number, since it uses less digits than its factorization.

142330122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 142330122 is about 11930.2188580093. The cubic root of 142330122 is about 522.1143229588.

Adding to 142330122 its reverse (221033241), we get a palindrome (363363363).

The spelling of 142330122 in words is "one hundred forty-two million, three hundred thirty thousand, one hundred twenty-two".