138960583 has 2 divisors, whose sum is σ = 138960584. Its totient is φ = 138960582.

The previous prime is 138960559. The next prime is 138960587. The reversal of 138960583 is 385069831.

It is a strong prime.

It is an emirp because it is prime and its reverse (385069831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138960583 - 2⁹ = 138960071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138960587) 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, 69480291 + 69480292.

It is an arithmetic number, because the mean of its divisors is an integer number (69480292).

Almost surely, 2^138960583 is an apocalyptic number.

138960583 is a deficient number, since it is larger than the sum of its proper divisors (1).

138960583 is an equidigital number, since it uses as much as digits as its factorization.

138960583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 138960583 is about 11788.1543508727. The cubic root of 138960583 is about 517.9611771066.

The spelling of 138960583 in words is "one hundred thirty-eight million, nine hundred sixty thousand, five hundred eighty-three".