138477167 has 4 divisors (see below), whose sum is σ = 138564216. Its totient is φ = 138390120.

The previous prime is 138477151. The next prime is 138477179. The reversal of 138477167 is 761774831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 761774831 = 4817 ⋅158143.

It is a cyclic number.

It is not a de Polignac number, because 138477167 - 2⁴ = 138477151 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 (138477107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41093 + ... + 44334.

It is an arithmetic number, because the mean of its divisors is an integer number (34641054).

Almost surely, 2^138477167 is an apocalyptic number.

138477167 is a deficient number, since it is larger than the sum of its proper divisors (87049).

138477167 is an equidigital number, since it uses as much as digits as its factorization.

138477167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87048.

The product of its digits is 197568, while the sum is 44.

The square root of 138477167 is about 11767.6321747410. The cubic root of 138477167 is about 517.3598515833.

The spelling of 138477167 in words is "one hundred thirty-eight million, four hundred seventy-seven thousand, one hundred sixty-seven".