138854179 has 2 divisors, whose sum is σ = 138854180. Its totient is φ = 138854178.

The previous prime is 138854161. The next prime is 138854201. The reversal of 138854179 is 971458831.

It is a happy number.

138854179 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138854179 - 2¹⁵ = 138821411 is a prime.

It is not a weakly prime, because it can be changed into another prime (138854129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69427089 + 69427090.

It is an arithmetic number, because the mean of its divisors is an integer number (69427090).

Almost surely, 2^138854179 is an apocalyptic number.

138854179 is a deficient number, since it is larger than the sum of its proper divisors (1).

138854179 is an equidigital number, since it uses as much as digits as its factorization.

138854179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 46.

The square root of 138854179 is about 11783.6403118900. The cubic root of 138854179 is about 517.8289400534.

The spelling of 138854179 in words is "one hundred thirty-eight million, eight hundred fifty-four thousand, one hundred seventy-nine".