142542 has 12 divisors (see below), whose sum is σ = 308880. Its totient is φ = 47508.

The previous prime is 142537. The next prime is 142543. The reversal of 142542 is 245241.

142542 is nontrivially palindromic in base 12.

142542 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: 7919 = 142542 / (1 + 4 + 2 + 5 + 4 + 2).

It is a plaindrome in base 16.

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 142542.

It is not an unprimeable number, because it can be changed into a prime (142543) by changing a digit.

142542 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3942 + ... + 3977.

It is an arithmetic number, because the mean of its divisors is an integer number (25740).

2¹⁴²⁵⁴² is an apocalyptic number.

142542 is an abundant number, since it is smaller than the sum of its proper divisors (166338).

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

142542 is a wasteful number, since it uses less digits than its factorization.

142542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927 (or 7924 counting only the distinct ones).

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

The square root of 142542 is about 377.5473480241. The cubic root of 142542 is about 52.2373274212.

Adding to 142542 its reverse (245241), we get a palindrome (387783).

It can be divided in two parts, 14 and 2542, that added together give a triangular number (2556 = T₇₁).

The spelling of 142542 in words is "one hundred forty-two thousand, five hundred forty-two".