142102422 has 192 divisors, whose sum is σ = 419986944. Its totient is φ = 33592320.

The previous prime is 142102421. The next prime is 142102447. The reversal of 142102422 is 224201241.

142102422 is a `hidden beast` number, since 1 + 421 + 0 + 242 + 2 = 666.

142102422 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 = 142102395 and 142102404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142102421) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 871713 + ... + 871875.

It is an arithmetic number, because the mean of its divisors is an integer number (2187432).

Almost surely, 2^142102422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142102422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209993472).

142102422 is an abundant number, since it is smaller than the sum of its proper divisors (277884522).

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

142102422 is a wasteful number, since it uses less digits than its factorization.

142102422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 142102422 is about 11920.6720448136. The cubic root of 142102422 is about 521.8357478551.

Adding to 142102422 its reverse (224201241), we get a palindrome (366303663).

The spelling of 142102422 in words is "one hundred forty-two million, one hundred two thousand, four hundred twenty-two".