142240142 has 32 divisors (see below), whose sum is σ = 248085504. Its totient is φ = 60517600.

The previous prime is 142240141. The next prime is 142240169. The reversal of 142240142 is 241042241.

142240142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142240141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20792 + ... + 26772.

It is an arithmetic number, because the mean of its divisors is an integer number (7752672).

Almost surely, 2^142240142 is an apocalyptic number.

142240142 is a deficient number, since it is larger than the sum of its proper divisors (105845362).

142240142 is a wasteful number, since it uses less digits than its factorization.

142240142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6064.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 142240142 is about 11926.4471658579. The cubic root of 142240142 is about 522.0042742221.

Adding to 142240142 its reverse (241042241), we get a palindrome (383282383).

The spelling of 142240142 in words is "one hundred forty-two million, two hundred forty thousand, one hundred forty-two".