142042134 has 48 divisors (see below), whose sum is σ = 310321152. Its totient is φ = 43321824.

The previous prime is 142042129. The next prime is 142042141. The reversal of 142042134 is 431240241.

It is a self number, because there is not a number n which added to its sum of digits gives 142042134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128227 + ... + 129329.

It is an arithmetic number, because the mean of its divisors is an integer number (6465024).

Almost surely, 2^142042134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142042134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155160576).

142042134 is an abundant number, since it is smaller than the sum of its proper divisors (168279018).

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

142042134 is a wasteful number, since it uses less digits than its factorization.

142042134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 142042134 is about 11918.1430600576. The cubic root of 142042134 is about 521.7619398621.

Adding to 142042134 its reverse (431240241), we get a palindrome (573282375).

It can be divided in two parts, 1420421 and 34, that added together give a triangular number (1420455 = T₁₆₈₅).

The spelling of 142042134 in words is "one hundred forty-two million, forty-two thousand, one hundred thirty-four".