138750067 has 2 divisors, whose sum is σ = 138750068. Its totient is φ = 138750066.

The previous prime is 138750041. The next prime is 138750071. The reversal of 138750067 is 760057831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138750067 - 2¹¹ = 138748019 is a prime.

It is a Chen prime.

It is equal to p_7845427 and since 138750067 and 7845427 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (138750077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69375033 + 69375034.

It is an arithmetic number, because the mean of its divisors is an integer number (69375034).

Almost surely, 2^138750067 is an apocalyptic number.

138750067 is a deficient number, since it is larger than the sum of its proper divisors (1).

138750067 is an equidigital number, since it uses as much as digits as its factorization.

138750067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 138750067 is about 11779.2218333810. The cubic root of 138750067 is about 517.6994860536.

The spelling of 138750067 in words is "one hundred thirty-eight million, seven hundred fifty thousand, sixty-seven".