138804104 has 16 divisors (see below), whose sum is σ = 260528400. Its totient is φ = 69329872.

The previous prime is 138804091. The next prime is 138804109. The reversal of 138804104 is 401408831.

It is not an unprimeable number, because it can be changed into a prime (138804109) 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, 362 + ... + 16665.

It is an arithmetic number, because the mean of its divisors is an integer number (16283025).

Almost surely, 2^138804104 is an apocalyptic number.

It is an amenable number.

138804104 is a deficient number, since it is larger than the sum of its proper divisors (121724296).

138804104 is a wasteful number, since it uses less digits than its factorization.

138804104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18052 (or 18048 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 138804104 is about 11781.5153524494. The cubic root of 138804104 is about 517.7666843304.

The spelling of 138804104 in words is "one hundred thirty-eight million, eight hundred four thousand, one hundred four".