138565382 has 8 divisors (see below), whose sum is σ = 209485056. Its totient is φ = 68737032.

The previous prime is 138565379. The next prime is 138565391. The reversal of 138565382 is 283565831.

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, 272513 + ... + 273020.

It is an arithmetic number, because the mean of its divisors is an integer number (26185632).

Almost surely, 2^138565382 is an apocalyptic number.

138565382 is a deficient number, since it is larger than the sum of its proper divisors (70919674).

138565382 is a wasteful number, since it uses less digits than its factorization.

138565382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545662.

The product of its digits is 172800, while the sum is 41.

The square root of 138565382 is about 11771.3797831860. The cubic root of 138565382 is about 517.4696872876.

The spelling of 138565382 in words is "one hundred thirty-eight million, five hundred sixty-five thousand, three hundred eighty-two".