138794543033 has 2 divisors, whose sum is σ = 138794543034. Its totient is φ = 138794543032.

The previous prime is 138794543023. The next prime is 138794543071. The reversal of 138794543033 is 330345497831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137249502784 + 1545040249 = 370472^2 + 39307^2 .

It is a cyclic number.

It is not a de Polignac number, because 138794543033 - 2¹⁰ = 138794542009 is a prime.

It is not a weakly prime, because it can be changed into another prime (138794543023) 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, 69397271516 + 69397271517.

It is an arithmetic number, because the mean of its divisors is an integer number (69397271517).

Almost surely, 2^138794543033 is an apocalyptic number.

It is an amenable number.

138794543033 is a deficient number, since it is larger than the sum of its proper divisors (1).

138794543033 is an equidigital number, since it uses as much as digits as its factorization.

138794543033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 138794543033 in words is "one hundred thirty-eight billion, seven hundred ninety-four million, five hundred forty-three thousand, thirty-three".