142243022142 has 96 divisors (see below), whose sum is σ = 348974851680. Its totient is φ = 41565000960.

The previous prime is 142243022101. The next prime is 142243022147. The reversal of 142243022142 is 241220342241.

It is a happy number.

142243022142 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 430 + 221 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142243022147) 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 47 ways as a sum of consecutive naturals, for example, 242133 + ... + 585759.

It is an arithmetic number, because the mean of its divisors is an integer number (3635154705).

Almost surely, 2^142243022142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142243022142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174487425840).

142243022142 is an abundant number, since it is smaller than the sum of its proper divisors (206731829538).

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

142243022142 is a wasteful number, since it uses less digits than its factorization.

142243022142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343738 (or 343735 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 142243022142 its reverse (241220342241), we get a palindrome (383463364383).

The spelling of 142243022142 in words is "one hundred forty-two billion, two hundred forty-three million, twenty-two thousand, one hundred forty-two".