138766127 has 2 divisors, whose sum is σ = 138766128. Its totient is φ = 138766126.

The previous prime is 138766097. The next prime is 138766141. The reversal of 138766127 is 721667831.

138766127 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (721667831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138766127 - 2⁸ = 138765871 is a 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 (138766157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69383063 + 69383064.

It is an arithmetic number, because the mean of its divisors is an integer number (69383064).

Almost surely, 2^138766127 is an apocalyptic number.

138766127 is a deficient number, since it is larger than the sum of its proper divisors (1).

138766127 is an equidigital number, since it uses as much as digits as its factorization.

138766127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 138766127 is about 11779.9035225251. The cubic root of 138766127 is about 517.7194594565.

The spelling of 138766127 in words is "one hundred thirty-eight million, seven hundred sixty-six thousand, one hundred twenty-seven".