138215940703 has 2 divisors, whose sum is σ = 138215940704. Its totient is φ = 138215940702.

The previous prime is 138215940697. The next prime is 138215940739. The reversal of 138215940703 is 307049512831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138215940703 - 2¹³ = 138215932511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138215940703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138215940403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69107970351 + 69107970352.

It is an arithmetic number, because the mean of its divisors is an integer number (69107970352).

Almost surely, 2^138215940703 is an apocalyptic number.

138215940703 is a deficient number, since it is larger than the sum of its proper divisors (1).

138215940703 is an equidigital number, since it uses as much as digits as its factorization.

138215940703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 138215940703 in words is "one hundred thirty-eight billion, two hundred fifteen million, nine hundred forty thousand, seven hundred three".