138586067 has 2 divisors, whose sum is σ = 138586068. Its totient is φ = 138586066.

The previous prime is 138586051. The next prime is 138586069. The reversal of 138586067 is 760685831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138586067 - 2⁴ = 138586051 is a prime.

Together with 138586069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138586069) 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, 69293033 + 69293034.

It is an arithmetic number, because the mean of its divisors is an integer number (69293034).

Almost surely, 2^138586067 is an apocalyptic number.

138586067 is a deficient number, since it is larger than the sum of its proper divisors (1).

138586067 is an equidigital number, since it uses as much as digits as its factorization.

138586067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 138586067 is about 11772.2583644771. The cubic root of 138586067 is about 517.4954352480.

The spelling of 138586067 in words is "one hundred thirty-eight million, five hundred eighty-six thousand, sixty-seven".