138726604301 has 2 divisors, whose sum is σ = 138726604302. Its totient is φ = 138726604300.

The previous prime is 138726604297. The next prime is 138726604321. The reversal of 138726604301 is 103406627831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123182748676 + 15543855625 = 350974^2 + 124675^2 .

It is a cyclic number.

It is not a de Polignac number, because 138726604301 - 2² = 138726604297 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138726604321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69363302150 + 69363302151.

It is an arithmetic number, because the mean of its divisors is an integer number (69363302151).

Almost surely, 2^138726604301 is an apocalyptic number.

It is an amenable number.

138726604301 is a deficient number, since it is larger than the sum of its proper divisors (1).

138726604301 is an equidigital number, since it uses as much as digits as its factorization.

138726604301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 138726604301 in words is "one hundred thirty-eight billion, seven hundred twenty-six million, six hundred four thousand, three hundred one".