138015382 has 8 divisors (see below), whose sum is σ = 207073152. Its totient is φ = 68991000.

The previous prime is 138015349. The next prime is 138015419. The reversal of 138015382 is 283510831.

138015382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10507 + ... + 19657.

It is an arithmetic number, because the mean of its divisors is an integer number (25884144).

Almost surely, 2^138015382 is an apocalyptic number.

138015382 is a deficient number, since it is larger than the sum of its proper divisors (69057770).

138015382 is an equidigital number, since it uses as much as digits as its factorization.

138015382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16694.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 138015382 is about 11747.9948076257. The cubic root of 138015382 is about 516.7841247116.

The spelling of 138015382 in words is "one hundred thirty-eight million, fifteen thousand, three hundred eighty-two".