138572711 has 2 divisors, whose sum is σ = 138572712. Its totient is φ = 138572710.

The previous prime is 138572699. The next prime is 138572713. The reversal of 138572711 is 117275831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138572711 is a prime.

Together with 138572713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138572713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69286355 + 69286356.

It is an arithmetic number, because the mean of its divisors is an integer number (69286356).

Almost surely, 2^138572711 is an apocalyptic number.

138572711 is a deficient number, since it is larger than the sum of its proper divisors (1).

138572711 is an equidigital number, since it uses as much as digits as its factorization.

138572711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 35.

The square root of 138572711 is about 11771.6910849716. The cubic root of 138572711 is about 517.4788104621.

The spelling of 138572711 in words is "one hundred thirty-eight million, five hundred seventy-two thousand, seven hundred eleven".