2042139 has 16 divisors (see below), whose sum is σ = 3127680. Its totient is φ = 1172160.

The previous prime is 2042129. The next prime is 2042149. The reversal of 2042139 is 9312402.

It is an interprime number because it is at equal distance from previous prime (2042129) and next prime (2042149).

It is not a de Polignac number, because 2042139 - 2⁴ = 2042123 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2042129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002 + ... + 2255.

It is an arithmetic number, because the mean of its divisors is an integer number (195480).

2^2042139 is an apocalyptic number.

2042139 is a deficient number, since it is larger than the sum of its proper divisors (1085541).

2042139 is a wasteful number, since it uses less digits than its factorization.

2042139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2042139 is about 1429.0342893017. The cubic root of 2042139 is about 126.8708257340.

The spelling of 2042139 in words is "two million, forty-two thousand, one hundred thirty-nine".