138607583 has 2 divisors, whose sum is σ = 138607584. Its totient is φ = 138607582.

The previous prime is 138607577. The next prime is 138607589. The reversal of 138607583 is 385706831.

It is a balanced prime because it is at equal distance from previous prime (138607577) and next prime (138607589).

It is a cyclic number.

It is not a de Polignac number, because 138607583 - 2⁶ = 138607519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138607583.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138607589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69303791 + 69303792.

It is an arithmetic number, because the mean of its divisors is an integer number (69303792).

Almost surely, 2^138607583 is an apocalyptic number.

138607583 is a deficient number, since it is larger than the sum of its proper divisors (1).

138607583 is an equidigital number, since it uses as much as digits as its factorization.

138607583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 138607583 is about 11773.1721723586. The cubic root of 138607583 is about 517.5222148896.

The spelling of 138607583 in words is "one hundred thirty-eight million, six hundred seven thousand, five hundred eighty-three".