2136256747 has 2 divisors, whose sum is σ = 2136256748. Its totient is φ = 2136256746.

The previous prime is 2136256741. The next prime is 2136256769. The reversal of 2136256747 is 7476526312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2136256747 - 2²³ = 2127868139 is a prime.

It is not a weakly prime, because it can be changed into another prime (2136256741) 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, 1068128373 + 1068128374.

It is an arithmetic number, because the mean of its divisors is an integer number (1068128374).

Almost surely, 2^2136256747 is an apocalyptic number.

2136256747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136256747 is an equidigital number, since it uses as much as digits as its factorization.

2136256747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 43.

The square root of 2136256747 is about 46219.6575820289. The cubic root of 2136256747 is about 1287.9069370909.

The spelling of 2136256747 in words is "two billion, one hundred thirty-six million, two hundred fifty-six thousand, seven hundred forty-seven".