142442142 has 32 divisors (see below), whose sum is σ = 296110080. Its totient is φ = 45625440.

The previous prime is 142442129. The next prime is 142442147. The reversal of 142442142 is 241244241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142442147) 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, 36967 + ... + 40637.

It is an arithmetic number, because the mean of its divisors is an integer number (9253440).

Almost surely, 2^142442142 is an apocalyptic number.

142442142 is an abundant number, since it is smaller than the sum of its proper divisors (153667938).

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

142442142 is a wasteful number, since it uses less digits than its factorization.

142442142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928.

The product of its digits is 2048, while the sum is 24.

The square root of 142442142 is about 11934.9127353324. The cubic root of 142442142 is about 522.2512626038.

Adding to 142442142 its reverse (241244241), we get a palindrome (383686383).

The spelling of 142442142 in words is "one hundred forty-two million, four hundred forty-two thousand, one hundred forty-two".