4067139 has 4 divisors (see below), whose sum is σ = 5422856. Its totient is φ = 2711424.

The previous prime is 4067137. The next prime is 4067143. The reversal of 4067139 is 9317604.

It is a happy number.

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

It is not a de Polignac number, because 4067139 - 2¹ = 4067137 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4067137) 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, 677854 + ... + 677859.

It is an arithmetic number, because the mean of its divisors is an integer number (1355714).

Almost surely, 2^4067139 is an apocalyptic number.

4067139 is a deficient number, since it is larger than the sum of its proper divisors (1355717).

4067139 is a wasteful number, since it uses less digits than its factorization.

4067139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355716.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 4067139 is about 2016.7149030044. The cubic root of 4067139 is about 159.6233196244.

The spelling of 4067139 in words is "four million, sixty-seven thousand, one hundred thirty-nine".