2656029139 has 2 divisors, whose sum is σ = 2656029140. Its totient is φ = 2656029138.

The previous prime is 2656029049. The next prime is 2656029143. The reversal of 2656029139 is 9319206562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2656029139 - 2²³ = 2647640531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2656029095 and 2656029104.

It is not a weakly prime, because it can be changed into another prime (2656029239) 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 as a sum of consecutive naturals, namely, 1328014569 + 1328014570.

It is an arithmetic number, because the mean of its divisors is an integer number (1328014570).

Almost surely, 2^2656029139 is an apocalyptic number.

2656029139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656029139 is an equidigital number, since it uses as much as digits as its factorization.

2656029139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 2656029139 is about 51536.6776092522. The cubic root of 2656029139 is about 1384.8761789847.

The spelling of 2656029139 in words is "two billion, six hundred fifty-six million, twenty-nine thousand, one hundred thirty-nine".