2140239 has 16 divisors (see below), whose sum is σ = 2990592. Its totient is φ = 1360128.

The previous prime is 2140231. The next prime is 2140253. The reversal of 2140239 is 9320412.

It is not a de Polignac number, because 2140239 - 2³ = 2140231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140231) 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, 5887 + ... + 6239.

It is an arithmetic number, because the mean of its divisors is an integer number (186912).

2^2140239 is an apocalyptic number.

2140239 is a deficient number, since it is larger than the sum of its proper divisors (850353).

2140239 is a wasteful number, since it uses less digits than its factorization.

2140239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446.

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

The square root of 2140239 is about 1462.9555700704. The cubic root of 2140239 is about 128.8706714189.

The spelling of 2140239 in words is "two million, one hundred forty thousand, two hundred thirty-nine".