138825179 has 8 divisors (see below), whose sum is σ = 149765760. Its totient is φ = 128192896.

The previous prime is 138825173. The next prime is 138825187. The reversal of 138825179 is 971528831.

138825179 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 a cyclic number.

It is not a de Polignac number, because 138825179 - 2⁴ = 138825163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138825173) 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, 76139 + ... + 77940.

It is an arithmetic number, because the mean of its divisors is an integer number (18720720).

Almost surely, 2^138825179 is an apocalyptic number.

138825179 is a deficient number, since it is larger than the sum of its proper divisors (10940581).

138825179 is a wasteful number, since it uses less digits than its factorization.

138825179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154149.

The product of its digits is 120960, while the sum is 44.

The square root of 138825179 is about 11782.4097280650. The cubic root of 138825179 is about 517.7928876399.

The spelling of 138825179 in words is "one hundred thirty-eight million, eight hundred twenty-five thousand, one hundred seventy-nine".