138933207097 has 2 divisors, whose sum is σ = 138933207098. Its totient is φ = 138933207096.

The previous prime is 138933207073. The next prime is 138933207103. The reversal of 138933207097 is 790702339831.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134710286841 + 4222920256 = 367029^2 + 64984^2 .

It is a cyclic number.

It is not a de Polignac number, because 138933207097 - 2¹¹ = 138933205049 is a prime.

It is not a weakly prime, because it can be changed into another prime (138933204097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69466603548 + 69466603549.

It is an arithmetic number, because the mean of its divisors is an integer number (69466603549).

Almost surely, 2^138933207097 is an apocalyptic number.

It is an amenable number.

138933207097 is a deficient number, since it is larger than the sum of its proper divisors (1).

138933207097 is an equidigital number, since it uses as much as digits as its factorization.

138933207097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 138933207097 in words is "one hundred thirty-eight billion, nine hundred thirty-three million, two hundred seven thousand, ninety-seven".