138381182 has 8 divisors (see below), whose sum is σ = 207800400. Its totient is φ = 69114384.

The previous prime is 138381157. The next prime is 138381223. The reversal of 138381182 is 281183831.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35807 + ... + 39482.

It is an arithmetic number, because the mean of its divisors is an integer number (25975050).

Almost surely, 2^138381182 is an apocalyptic number.

138381182 is a deficient number, since it is larger than the sum of its proper divisors (69419218).

138381182 is an equidigital number, since it uses as much as digits as its factorization.

138381182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76210.

The product of its digits is 9216, while the sum is 35.

The square root of 138381182 is about 11763.5531196998. The cubic root of 138381182 is about 517.2402885187.

The spelling of 138381182 in words is "one hundred thirty-eight million, three hundred eighty-one thousand, one hundred eighty-two".