138701670053 has 2 divisors, whose sum is σ = 138701670054. Its totient is φ = 138701670052.

The previous prime is 138701670047. The next prime is 138701670139. The reversal of 138701670053 is 350076107831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116446102564 + 22255567489 = 341242^2 + 149183^2 .

It is a cyclic number.

It is not a de Polignac number, because 138701670053 - 2¹⁸ = 138701407909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138701610053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69350835026 + 69350835027.

It is an arithmetic number, because the mean of its divisors is an integer number (69350835027).

Almost surely, 2^138701670053 is an apocalyptic number.

It is an amenable number.

138701670053 is a deficient number, since it is larger than the sum of its proper divisors (1).

138701670053 is an equidigital number, since it uses as much as digits as its factorization.

138701670053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 41.

Adding to 138701670053 its reverse (350076107831), we get a palindrome (488777777884).

The spelling of 138701670053 in words is "one hundred thirty-eight billion, seven hundred one million, six hundred seventy thousand, fifty-three".