138773113 has 2 divisors, whose sum is σ = 138773114. Its totient is φ = 138773112.

The previous prime is 138773111. The next prime is 138773119. The reversal of 138773113 is 311377831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131606784 + 7166329 = 11472^2 + 2677^2 .

It is a cyclic number.

It is not a de Polignac number, because 138773113 - 2¹ = 138773111 is a prime.

Together with 138773111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (138773111) 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, 69386556 + 69386557.

It is an arithmetic number, because the mean of its divisors is an integer number (69386557).

Almost surely, 2^138773113 is an apocalyptic number.

It is an amenable number.

138773113 is a deficient number, since it is larger than the sum of its proper divisors (1).

138773113 is an equidigital number, since it uses as much as digits as its factorization.

138773113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 34.

The square root of 138773113 is about 11780.2000407463. The cubic root of 138773113 is about 517.7281472814.

The spelling of 138773113 in words is "one hundred thirty-eight million, seven hundred seventy-three thousand, one hundred thirteen".