138482679 has 16 divisors (see below), whose sum is σ = 187791872. Its totient is φ = 90756288.

The previous prime is 138482671. The next prime is 138482689. The reversal of 138482679 is 976284831.

It is not a de Polignac number, because 138482679 - 2³ = 138482671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138482671) 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, 79512 + ... + 81234.

It is an arithmetic number, because the mean of its divisors is an integer number (11736992).

Almost surely, 2^138482679 is an apocalyptic number.

138482679 is a deficient number, since it is larger than the sum of its proper divisors (49309193).

138482679 is a wasteful number, since it uses less digits than its factorization.

138482679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166.

The product of its digits is 580608, while the sum is 48.

The square root of 138482679 is about 11767.8663741564. The cubic root of 138482679 is about 517.3667158910.

The spelling of 138482679 in words is "one hundred thirty-eight million, four hundred eighty-two thousand, six hundred seventy-nine".