138856104 has 48 divisors (see below), whose sum is σ = 395865600. Its totient is φ = 43848864.

The previous prime is 138856103. The next prime is 138856121. The reversal of 138856104 is 401658831.

138856104 is a `hidden beast` number, since 1 + 38 + 8 + 5 + 610 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (138856103) 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 11 ways as a sum of consecutive naturals, for example, 49384 + ... + 52119.

It is an arithmetic number, because the mean of its divisors is an integer number (8247200).

Almost surely, 2^138856104 is an apocalyptic number.

It is an amenable number.

138856104 is an abundant number, since it is smaller than the sum of its proper divisors (257009496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138856104 is a wasteful number, since it uses less digits than its factorization.

138856104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101534 (or 101527 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 138856104 is about 11783.7219926473. The cubic root of 138856104 is about 517.8313330100.

The spelling of 138856104 in words is "one hundred thirty-eight million, eight hundred fifty-six thousand, one hundred four".