138771359 has 2 divisors, whose sum is σ = 138771360. Its totient is φ = 138771358.

The previous prime is 138771343. The next prime is 138771379. The reversal of 138771359 is 953177831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138771359 - 2⁴ = 138771343 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138771319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69385679 + 69385680.

It is an arithmetic number, because the mean of its divisors is an integer number (69385680).

Almost surely, 2^138771359 is an apocalyptic number.

138771359 is a deficient number, since it is larger than the sum of its proper divisors (1).

138771359 is an equidigital number, since it uses as much as digits as its factorization.

138771359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 44.

The square root of 138771359 is about 11780.1255935580. The cubic root of 138771359 is about 517.7259660256.

The spelling of 138771359 in words is "one hundred thirty-eight million, seven hundred seventy-one thousand, three hundred fifty-nine".