138338174 has 8 divisors (see below), whose sum is σ = 223469400. Its totient is φ = 63848376.

The previous prime is 138338159. The next prime is 138338201. The reversal of 138338174 is 471833831.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2660324 + ... + 2660375.

It is an arithmetic number, because the mean of its divisors is an integer number (27933675).

Almost surely, 2^138338174 is an apocalyptic number.

138338174 is a deficient number, since it is larger than the sum of its proper divisors (85131226).

138338174 is a wasteful number, since it uses less digits than its factorization.

138338174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320714.

The product of its digits is 48384, while the sum is 38.

The square root of 138338174 is about 11761.7249585254. The cubic root of 138338174 is about 517.1866979582.

The spelling of 138338174 in words is "one hundred thirty-eight million, three hundred thirty-eight thousand, one hundred seventy-four".