2140679239 has 4 divisors (see below), whose sum is σ = 2209733440. Its totient is φ = 2071625040.

The previous prime is 2140679227. The next prime is 2140679257. The reversal of 2140679239 is 9329760412.

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 2140679239 - 2¹⁵ = 2140646471 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2140679195 and 2140679204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140679209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34527054 + ... + 34527115.

It is an arithmetic number, because the mean of its divisors is an integer number (552433360).

Almost surely, 2^2140679239 is an apocalyptic number.

2140679239 is a deficient number, since it is larger than the sum of its proper divisors (69054201).

2140679239 is an equidigital number, since it uses as much as digits as its factorization.

2140679239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69054200.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 2140679239 is about 46267.4749581172. The cubic root of 2140679239 is about 1288.7950688169.

The spelling of 2140679239 in words is "two billion, one hundred forty million, six hundred seventy-nine thousand, two hundred thirty-nine".