42034139 has 4 divisors (see below), whose sum is σ = 48039024. Its totient is φ = 36029256.

The previous prime is 42034129. The next prime is 42034147. The reversal of 42034139 is 93143024.

42034139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42034139 - 2⁴ = 42034123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42034129) 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, 3002432 + ... + 3002445.

It is an arithmetic number, because the mean of its divisors is an integer number (12009756).

Almost surely, 2^42034139 is an apocalyptic number.

42034139 is a deficient number, since it is larger than the sum of its proper divisors (6004885).

42034139 is an equidigital number, since it uses as much as digits as its factorization.

42034139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6004884.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 42034139 is about 6483.3740444309. The cubic root of 42034139 is about 347.6968199932.

The spelling of 42034139 in words is "forty-two million, thirty-four thousand, one hundred thirty-nine".