4032139 has 4 divisors (see below), whose sum is σ = 4162240. Its totient is φ = 3902040.

The previous prime is 4032113. The next prime is 4032151. The reversal of 4032139 is 9312304.

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 4032139 - 2⁹ = 4031627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4032839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65004 + ... + 65065.

It is an arithmetic number, because the mean of its divisors is an integer number (1040560).

Almost surely, 2^4032139 is an apocalyptic number.

4032139 is a deficient number, since it is larger than the sum of its proper divisors (130101).

4032139 is a wasteful number, since it uses less digits than its factorization.

4032139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130100.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 4032139 is about 2008.0186752120. The cubic root of 4032139 is about 159.1641172927.

The spelling of 4032139 in words is "four million, thirty-two thousand, one hundred thirty-nine".