138676711 has 2 divisors, whose sum is σ = 138676712. Its totient is φ = 138676710.

The previous prime is 138676709. The next prime is 138676721. The reversal of 138676711 is 117676831.

It is a weak prime.

It is an emirp because it is prime and its reverse (117676831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138676711 - 2¹ = 138676709 is a prime.

Together with 138676709, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138676721) 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, 69338355 + 69338356.

It is an arithmetic number, because the mean of its divisors is an integer number (69338356).

Almost surely, 2^138676711 is an apocalyptic number.

138676711 is a deficient number, since it is larger than the sum of its proper divisors (1).

138676711 is an equidigital number, since it uses as much as digits as its factorization.

138676711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 40.

The square root of 138676711 is about 11776.1076336793. The cubic root of 138676711 is about 517.6082355077.

The spelling of 138676711 in words is "one hundred thirty-eight million, six hundred seventy-six thousand, seven hundred eleven".