4139142 has 32 divisors (see below), whose sum is σ = 9542400. Its totient is φ = 1172448.

The previous prime is 4139129. The next prime is 4139147. The reversal of 4139142 is 2419314.

4139142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4139147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5484 + ... + 6192.

It is an arithmetic number, because the mean of its divisors is an integer number (298200).

Almost surely, 2^4139142 is an apocalyptic number.

4139142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4139142 is an abundant number, since it is smaller than the sum of its proper divisors (5403258).

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

4139142 is a wasteful number, since it uses less digits than its factorization.

4139142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860.

The product of its digits is 864, while the sum is 24.

The square root of 4139142 is about 2034.4881420151. The cubic root of 4139142 is about 160.5597840192.

The spelling of 4139142 in words is "four million, one hundred thirty-nine thousand, one hundred forty-two".