138219703 has 2 divisors, whose sum is σ = 138219704. Its totient is φ = 138219702.

The previous prime is 138219691. The next prime is 138219709. The reversal of 138219703 is 307912831.

It is a strong prime.

It is an emirp because it is prime and its reverse (307912831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138219703 - 2⁵ = 138219671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138219709) 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, 69109851 + 69109852.

It is an arithmetic number, because the mean of its divisors is an integer number (69109852).

Almost surely, 2^138219703 is an apocalyptic number.

138219703 is a deficient number, since it is larger than the sum of its proper divisors (1).

138219703 is an equidigital number, since it uses as much as digits as its factorization.

138219703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 138219703 is about 11756.6875862209. The cubic root of 138219703 is about 517.0390184889.

The spelling of 138219703 in words is "one hundred thirty-eight million, two hundred nineteen thousand, seven hundred three".