2144239 has 6 divisors (see below), whose sum is σ = 2221856. Its totient is φ = 2067180.

The previous prime is 2144213. The next prime is 2144243. The reversal of 2144239 is 9324412.

It is not a de Polignac number, because 2144239 - 2¹⁵ = 2111471 is a prime.

It is a super-3 number, since 3×2144239³ = 29576094633383771757, which contains 333 as substring.

It is a d-powerful number, because it can be written as 2³ + 1 + 4 + 4¹⁰ + 2¹⁵ + 3¹² + 9⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8022 + ... + 8284.

2^2144239 is an apocalyptic number.

2144239 is a deficient number, since it is larger than the sum of its proper divisors (77617).

2144239 is an frugal number, since it uses more digits than its factorization.

2144239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 294 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 2144239 is about 1464.3220274243. The cubic root of 2144239 is about 128.9509057419.

The spelling of 2144239 in words is "two million, one hundred forty-four thousand, two hundred thirty-nine".