138683570522113 has 4 divisors (see below), whose sum is σ = 140241812887620. Its totient is φ = 137125328156608.

The previous prime is 138683570521967. The next prime is 138683570522153. The reversal of 138683570522113 is 311225075386831.

It is a happy number.

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 34465259386944 + 104218311135169 = 5870712^2 + 10208737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138683570522113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138683570522153) 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, 779121182620 + ... + 779121182797.

It is an arithmetic number, because the mean of its divisors is an integer number (35060453221905).

Almost surely, 2^{138683570522113} is an apocalyptic number.

It is an amenable number.

138683570522113 is a deficient number, since it is larger than the sum of its proper divisors (1558242365507).

138683570522113 is an equidigital number, since it uses as much as digits as its factorization.

138683570522113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558242365506.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 138683570522113 in words is "one hundred thirty-eight trillion, six hundred eighty-three billion, five hundred seventy million, five hundred twenty-two thousand, one hundred thirteen".