138775134 has 8 divisors (see below), whose sum is σ = 277550280. Its totient is φ = 46258376.

The previous prime is 138775129. The next prime is 138775151. The reversal of 138775134 is 431577831.

It is a sphenic number, since it is the product of 3 distinct primes.

138775134 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 138775092 and 138775101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11564589 + ... + 11564600.

It is an arithmetic number, because the mean of its divisors is an integer number (34693785).

Almost surely, 2^138775134 is an apocalyptic number.

138775134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138775134 is a wasteful number, since it uses less digits than its factorization.

138775134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23129194.

The product of its digits is 70560, while the sum is 39.

The square root of 138775134 is about 11780.2858199621. The cubic root of 138775134 is about 517.7306605529.

The spelling of 138775134 in words is "one hundred thirty-eight million, seven hundred seventy-five thousand, one hundred thirty-four".