138122111022149 has 2 divisors, whose sum is σ = 138122111022150. Its totient is φ = 138122111022148.

The previous prime is 138122111022031. The next prime is 138122111022173. The reversal of 138122111022149 is 941220111221831.

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., 111929671221124 + 26192439801025 = 10579682^2 + 5117855^2 .

It is a cyclic number.

It is not a de Polignac number, because 138122111022149 - 2⁸ = 138122111021893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138122111022349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69061055511074 + 69061055511075.

It is an arithmetic number, because the mean of its divisors is an integer number (69061055511075).

Almost surely, 2^{138122111022149} is an apocalyptic number.

It is an amenable number.

138122111022149 is a deficient number, since it is larger than the sum of its proper divisors (1).

138122111022149 is an equidigital number, since it uses as much as digits as its factorization.

138122111022149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 38.

The spelling of 138122111022149 in words is "one hundred thirty-eight trillion, one hundred twenty-two billion, one hundred eleven million, twenty-two thousand, one hundred forty-nine".