138038548 has 12 divisors (see below), whose sum is σ = 252070560. Its totient is φ = 66018392.

The previous prime is 138038543. The next prime is 138038569. The reversal of 138038548 is 845830831.

138038548 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 138038548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138038543) 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 3 ways as a sum of consecutive naturals, for example, 750118 + ... + 750301.

It is an arithmetic number, because the mean of its divisors is an integer number (21005880).

Almost surely, 2^138038548 is an apocalyptic number.

It is an amenable number.

138038548 is a deficient number, since it is larger than the sum of its proper divisors (114032012).

138038548 is a wasteful number, since it uses less digits than its factorization.

138038548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500446 (or 1500444 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 138038548 is about 11748.9807217477. The cubic root of 138038548 is about 516.8130373132.

The spelling of 138038548 in words is "one hundred thirty-eight million, thirty-eight thousand, five hundred forty-eight".