2131078239 has 12 divisors (see below), whose sum is σ = 3078675600. Its totient is φ = 1420510464.

The previous prime is 2131078223. The next prime is 2131078283. The reversal of 2131078239 is 9328701312.

It is not a de Polignac number, because 2131078239 - 2⁴ = 2131078223 is a prime.

It is a super-2 number, since 2×2131078239² = 9082988921478682242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131078739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71167 + ... + 96575.

It is an arithmetic number, because the mean of its divisors is an integer number (256556300).

Almost surely, 2^2131078239 is an apocalyptic number.

2131078239 is a deficient number, since it is larger than the sum of its proper divisors (947597361).

2131078239 is a wasteful number, since it uses less digits than its factorization.

2131078239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34734 (or 34731 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 2131078239 is about 46163.6029681393. The cubic root of 2131078239 is about 1286.8654217095.

The spelling of 2131078239 in words is "two billion, one hundred thirty-one million, seventy-eight thousand, two hundred thirty-nine".