4542139 has 8 divisors (see below), whose sum is σ = 5239520. Its totient is φ = 3856896.

The previous prime is 4542119. The next prime is 4542143. The reversal of 4542139 is 9312454.

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

It is a cyclic number.

It is not a de Polignac number, because 4542139 - 2⁵ = 4542107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4542119) 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 7 ways as a sum of consecutive naturals, for example, 2214 + ... + 3739.

It is an arithmetic number, because the mean of its divisors is an integer number (654940).

Almost surely, 2^4542139 is an apocalyptic number.

4542139 is a deficient number, since it is larger than the sum of its proper divisors (697381).

4542139 is a wasteful number, since it uses less digits than its factorization.

4542139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6069.

The product of its digits is 4320, while the sum is 28.

The square root of 4542139 is about 2131.2294573790. The cubic root of 4542139 is about 165.6100952056.

The spelling of 4542139 in words is "four million, five hundred forty-two thousand, one hundred thirty-nine".