138465548371 has 2 divisors, whose sum is σ = 138465548372. Its totient is φ = 138465548370.

The previous prime is 138465548363. The next prime is 138465548399. The reversal of 138465548371 is 173845564831.

It is a weak prime.

It is an emirp because it is prime and its reverse (173845564831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138465548371 - 2³ = 138465548363 is a prime.

It is not a weakly prime, because it can be changed into another prime (138465548071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69232774185 + 69232774186.

It is an arithmetic number, because the mean of its divisors is an integer number (69232774186).

Almost surely, 2^138465548371 is an apocalyptic number.

138465548371 is a deficient number, since it is larger than the sum of its proper divisors (1).

138465548371 is an equidigital number, since it uses as much as digits as its factorization.

138465548371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 55.

The spelling of 138465548371 in words is "one hundred thirty-eight billion, four hundred sixty-five million, five hundred forty-eight thousand, three hundred seventy-one".