138108104 has 16 divisors (see below), whose sum is σ = 259912320. Its totient is φ = 68798160.

The previous prime is 138108079. The next prime is 138108109. The reversal of 138108104 is 401801831.

It is not an unprimeable number, because it can be changed into a prime (138108109) 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 in 3 ways as a sum of consecutive naturals, for example, 29684 + ... + 34019.

It is an arithmetic number, because the mean of its divisors is an integer number (16244520).

Almost surely, 2^138108104 is an apocalyptic number.

It is an amenable number.

138108104 is a deficient number, since it is larger than the sum of its proper divisors (121804216).

138108104 is a wasteful number, since it uses less digits than its factorization.

138108104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63980 (or 63976 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 138108104 is about 11751.9404355196. The cubic root of 138108104 is about 516.8998280733.

Adding to 138108104 its reverse (401801831), we get a palindrome (539909935).

The spelling of 138108104 in words is "one hundred thirty-eight million, one hundred eight thousand, one hundred four".