138710653 has 2 divisors, whose sum is σ = 138710654. Its totient is φ = 138710652.

The previous prime is 138710651. The next prime is 138710687. The reversal of 138710653 is 356017831.

It is an a-pointer prime, because the next prime (138710687) can be obtained adding 138710653 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105740089 + 32970564 = 10283^2 + 5742^2 .

It is a cyclic number.

It is not a de Polignac number, because 138710653 - 2¹ = 138710651 is a prime.

Together with 138710651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138710651) 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, 69355326 + 69355327.

It is an arithmetic number, because the mean of its divisors is an integer number (69355327).

Almost surely, 2^138710653 is an apocalyptic number.

It is an amenable number.

138710653 is a deficient number, since it is larger than the sum of its proper divisors (1).

138710653 is an equidigital number, since it uses as much as digits as its factorization.

138710653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 138710653 is about 11777.5486838306. The cubic root of 138710653 is about 517.6504613567.

The spelling of 138710653 in words is "one hundred thirty-eight million, seven hundred ten thousand, six hundred fifty-three".