542142 has 12 divisors (see below), whose sum is σ = 1174680. Its totient is φ = 180708.

The previous prime is 542141. The next prime is 542149. The reversal of 542142 is 241245.

542142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 30119 = 542142 / (5 + 4 + 2 + 1 + 4 + 2).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542142.

It is not an unprimeable number, because it can be changed into a prime (542141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15042 + ... + 15077.

It is an arithmetic number, because the mean of its divisors is an integer number (97890).

2⁵⁴²¹⁴² is an apocalyptic number.

542142 is an abundant number, since it is smaller than the sum of its proper divisors (632538).

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

542142 is a wasteful number, since it uses less digits than its factorization.

542142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30127 (or 30124 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 542142 is about 736.3029267903. The cubic root of 542142 is about 81.5400583434.

Adding to 542142 its reverse (241245), we get a palindrome (783387).

The spelling of 542142 in words is "five hundred forty-two thousand, one hundred forty-two".