138828741 has 16 divisors (see below), whose sum is σ = 192154368. Its totient is φ = 89092800.

The previous prime is 138828733. The next prime is 138828743. The reversal of 138828741 is 147828831.

It is not a de Polignac number, because 138828741 - 2³ = 138828733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138828693 and 138828702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138828743) 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 15 ways as a sum of consecutive naturals, for example, 531 + ... + 16671.

It is an arithmetic number, because the mean of its divisors is an integer number (12009648).

Almost surely, 2^138828741 is an apocalyptic number.

It is an amenable number.

138828741 is a deficient number, since it is larger than the sum of its proper divisors (53325627).

138828741 is a wasteful number, since it uses less digits than its factorization.

138828741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16252.

The product of its digits is 86016, while the sum is 42.

The square root of 138828741 is about 11782.5608846295. The cubic root of 138828741 is about 517.7973161412.

The spelling of 138828741 in words is "one hundred thirty-eight million, eight hundred twenty-eight thousand, seven hundred forty-one".