2312818139 has 2 divisors, whose sum is σ = 2312818140. Its totient is φ = 2312818138.

The previous prime is 2312818129. The next prime is 2312818171. The reversal of 2312818139 is 9318182132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2312818139 is a prime.

It is not a weakly prime, because it can be changed into another prime (2312818129) 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, 1156409069 + 1156409070.

It is an arithmetic number, because the mean of its divisors is an integer number (1156409070).

Almost surely, 2^2312818139 is an apocalyptic number.

2312818139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312818139 is an equidigital number, since it uses as much as digits as its factorization.

2312818139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 2312818139 is about 48091.7678922287. The cubic root of 2312818139 is about 1322.4537575297.

The spelling of 2312818139 in words is "two billion, three hundred twelve million, eight hundred eighteen thousand, one hundred thirty-nine".