138187382 has 8 divisors (see below), whose sum is σ = 207488736. Its totient is φ = 69024472.

The previous prime is 138187369. The next prime is 138187393. The reversal of 138187382 is 283781831.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32078 + ... + 36129.

It is an arithmetic number, because the mean of its divisors is an integer number (25936092).

Almost surely, 2^138187382 is an apocalyptic number.

138187382 is a deficient number, since it is larger than the sum of its proper divisors (69301354).

138187382 is a wasteful number, since it uses less digits than its factorization.

138187382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69222.

The product of its digits is 64512, while the sum is 41.

The square root of 138187382 is about 11755.3129265026. The cubic root of 138187382 is about 516.9987142474.

The spelling of 138187382 in words is "one hundred thirty-eight million, one hundred eighty-seven thousand, three hundred eighty-two".