138271327 has 2 divisors, whose sum is σ = 138271328. Its totient is φ = 138271326.

The previous prime is 138271297. The next prime is 138271337. The reversal of 138271327 is 723172831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138271327 - 2²³ = 129882719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138271292 and 138271301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138271337) 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, 69135663 + 69135664.

It is an arithmetic number, because the mean of its divisors is an integer number (69135664).

Almost surely, 2^138271327 is an apocalyptic number.

138271327 is a deficient number, since it is larger than the sum of its proper divisors (1).

138271327 is an equidigital number, since it uses as much as digits as its factorization.

138271327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 34.

The square root of 138271327 is about 11758.8828976225. The cubic root of 138271327 is about 517.1033805139.

The spelling of 138271327 in words is "one hundred thirty-eight million, two hundred seventy-one thousand, three hundred twenty-seven".