138265179 has 8 divisors (see below), whose sum is σ = 198534672. Its totient is φ = 85086240.

The previous prime is 138265163. The next prime is 138265271. The reversal of 138265179 is 971562831.

138265179 is digitally balanced in base 2, 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 not a de Polignac number, because 138265179 - 2⁴ = 138265163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138265179.

It is not an unprimeable number, because it can be changed into a prime (138265279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1772592 + ... + 1772669.

It is an arithmetic number, because the mean of its divisors is an integer number (24816834).

Almost surely, 2^138265179 is an apocalyptic number.

138265179 is a deficient number, since it is larger than the sum of its proper divisors (60269493).

138265179 is a wasteful number, since it uses less digits than its factorization.

138265179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545277.

The product of its digits is 90720, while the sum is 42.

The square root of 138265179 is about 11758.6214753261. The cubic root of 138265179 is about 517.0957163588.

The spelling of 138265179 in words is "one hundred thirty-eight million, two hundred sixty-five thousand, one hundred seventy-nine".