142243134 has 32 divisors (see below), whose sum is σ = 314288640. Its totient is φ = 42556800.

The previous prime is 142243117. The next prime is 142243141. The reversal of 142243134 is 431342241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8427 + ... + 18854.

It is an arithmetic number, because the mean of its divisors is an integer number (9821520).

Almost surely, 2^142243134 is an apocalyptic number.

142243134 is an abundant number, since it is smaller than the sum of its proper divisors (172045506).

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

142243134 is a wasteful number, since it uses less digits than its factorization.

142243134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27376.

The product of its digits is 2304, while the sum is 24.

The square root of 142243134 is about 11926.5726007097. The cubic root of 142243134 is about 522.0079342902.

Adding to 142243134 its reverse (431342241), we get a palindrome (573585375).

The spelling of 142243134 in words is "one hundred forty-two million, two hundred forty-three thousand, one hundred thirty-four".