138667034 has 16 divisors (see below), whose sum is σ = 228307680. Its totient is φ = 62642160.

The previous prime is 138667033. The next prime is 138667093. The reversal of 138667034 is 430766831.

It is not an unprimeable number, because it can be changed into a prime (138667033) 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 in 7 ways as a sum of consecutive naturals, for example, 15749 + ... + 22920.

It is an arithmetic number, because the mean of its divisors is an integer number (14269230).

Almost surely, 2^138667034 is an apocalyptic number.

138667034 is a deficient number, since it is larger than the sum of its proper divisors (89640646).

138667034 is a wasteful number, since it uses less digits than its factorization.

138667034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38845.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 138667034 is about 11775.6967522096. The cubic root of 138667034 is about 517.5961954870.

The spelling of 138667034 in words is "one hundred thirty-eight million, six hundred sixty-seven thousand, thirty-four".