138082712213 has 4 divisors (see below), whose sum is σ = 138084578028. Its totient is φ = 138080846400.

The previous prime is 138082712203. The next prime is 138082712293. The reversal of 138082712213 is 312217280831.

138082712213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30250601329 + 107832110884 = 173927^2 + 328378^2 .

It is a cyclic number.

It is not a de Polignac number, because 138082712213 - 2¹⁸ = 138082450069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138082712203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817106 + ... + 971507.

It is an arithmetic number, because the mean of its divisors is an integer number (34521144507).

Almost surely, 2^138082712213 is an apocalyptic number.

It is an amenable number.

138082712213 is a deficient number, since it is larger than the sum of its proper divisors (1865815).

138082712213 is an equidigital number, since it uses as much as digits as its factorization.

138082712213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865814.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 138082712213 in words is "one hundred thirty-eight billion, eighty-two million, seven hundred twelve thousand, two hundred thirteen".