142421142 has 16 divisors (see below), whose sum is σ = 285230592. Its totient is φ = 47409000.

The previous prime is 142421113. The next prime is 142421143. The reversal of 142421142 is 241124241.

142421142 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 (142421143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11298 + ... + 20309.

It is an arithmetic number, because the mean of its divisors is an integer number (17826912).

Almost surely, 2^142421142 is an apocalyptic number.

142421142 is an abundant number, since it is smaller than the sum of its proper divisors (142809450).

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

142421142 is a wasteful number, since it uses less digits than its factorization.

142421142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32363.

The product of its digits is 512, while the sum is 21.

The square root of 142421142 is about 11934.0329310757. The cubic root of 142421142 is about 522.2255964740.

Adding to 142421142 its reverse (241124241), we get a palindrome (383545383).

The spelling of 142421142 in words is "one hundred forty-two million, four hundred twenty-one thousand, one hundred forty-two".