138224086243 has 2 divisors, whose sum is σ = 138224086244. Its totient is φ = 138224086242.

The previous prime is 138224086207. The next prime is 138224086249. The reversal of 138224086243 is 342680422831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138224086243 - 2²¹ = 138221989091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138224086243.

It is not a weakly prime, because it can be changed into another prime (138224086249) 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 as a sum of consecutive naturals, namely, 69112043121 + 69112043122.

It is an arithmetic number, because the mean of its divisors is an integer number (69112043122).

Almost surely, 2^138224086243 is an apocalyptic number.

138224086243 is a deficient number, since it is larger than the sum of its proper divisors (1).

138224086243 is an equidigital number, since it uses as much as digits as its factorization.

138224086243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 43.

The spelling of 138224086243 in words is "one hundred thirty-eight billion, two hundred twenty-four million, eighty-six thousand, two hundred forty-three".