142112142 has 24 divisors (see below), whose sum is σ = 308924616. Its totient is φ = 47214576.

The previous prime is 142112137. The next prime is 142112149. The reversal of 142112142 is 241211241.

142112142 is digitally balanced in base 2, because in such base 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (142112149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7333 + ... + 18384.

It is an arithmetic number, because the mean of its divisors is an integer number (12871859).

Almost surely, 2^142112142 is an apocalyptic number.

142112142 is an abundant number, since it is smaller than the sum of its proper divisors (166812474).

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

142112142 is a wasteful number, since it uses less digits than its factorization.

142112142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26032 (or 26029 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 142112142 is about 11921.0797329772. The cubic root of 142112142 is about 521.8476456768.

Adding to 142112142 its reverse (241211241), we get a palindrome (383323383).

Subtracting 142112142 from its reverse (241211241), we obtain a palindrome (99099099).

The spelling of 142112142 in words is "one hundred forty-two million, one hundred twelve thousand, one hundred forty-two".