138689014 has 8 divisors (see below), whose sum is σ = 208225440. Its totient is φ = 69280536.

The previous prime is 138688997. The next prime is 138689017. The reversal of 138689014 is 410986831.

138689014 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138689017) 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, 29229 + ... + 33640.

It is an arithmetic number, because the mean of its divisors is an integer number (26028180).

Almost surely, 2^138689014 is an apocalyptic number.

138689014 is a deficient number, since it is larger than the sum of its proper divisors (69536426).

138689014 is a wasteful number, since it uses less digits than its factorization.

138689014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63974.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 138689014 is about 11776.6299933385. The cubic root of 138689014 is about 517.6235419610.

The spelling of 138689014 in words is "one hundred thirty-eight million, six hundred eighty-nine thousand, fourteen".