4542142 has 8 divisors (see below), whose sum is σ = 7432632. Its totient is φ = 2064600.

The previous prime is 4542119. The next prime is 4542143. The reversal of 4542142 is 2412454.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 206461 = 4542142 / (4 + 5 + 4 + 2 + 1 + 4 + 2).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4542143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 103209 + ... + 103252.

It is an arithmetic number, because the mean of its divisors is an integer number (929079).

Almost surely, 2^4542142 is an apocalyptic number.

4542142 is a deficient number, since it is larger than the sum of its proper divisors (2890490).

4542142 is a wasteful number, since it uses less digits than its factorization.

4542142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206474.

The product of its digits is 1280, while the sum is 22.

The square root of 4542142 is about 2131.2301611980. The cubic root of 4542142 is about 165.6101316664.

Adding to 4542142 its reverse (2412454), we get a palindrome (6954596).

The spelling of 4542142 in words is "four million, five hundred forty-two thousand, one hundred forty-two".