2913278139 has 12 divisors (see below), whose sum is σ = 4321800496. Its totient is φ = 1889693712.

The previous prime is 2913278111. The next prime is 2913278149. The reversal of 2913278139 is 9318723192.

2913278139 is a `hidden beast` number, since 291 + 327 + 8 + 1 + 39 = 666.

It is not a de Polignac number, because 2913278139 - 2⁵ = 2913278107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2913278094 and 2913278103.

It is not an unprimeable number, because it can be changed into a prime (2913278149) 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 11 ways as a sum of consecutive naturals, for example, 4373959 + ... + 4374624.

Almost surely, 2^2913278139 is an apocalyptic number.

2913278139 is a deficient number, since it is larger than the sum of its proper divisors (1408522357).

2913278139 is a wasteful number, since it uses less digits than its factorization.

2913278139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748626 (or 8748623 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 2913278139 is about 53974.7916994591. The cubic root of 2913278139 is about 1428.2162934736.

The spelling of 2913278139 in words is "two billion, nine hundred thirteen million, two hundred seventy-eight thousand, one hundred thirty-nine".