138682085 has 8 divisors (see below), whose sum is σ = 166561920. Its totient is φ = 110850064.

The previous prime is 138682067. The next prime is 138682091. The reversal of 138682085 is 580286831.

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

It is a cyclic number.

It is not a de Polignac number, because 138682085 - 2⁶ = 138682021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5225 + ... + 17454.

It is an arithmetic number, because the mean of its divisors is an integer number (20820240).

Almost surely, 2^138682085 is an apocalyptic number.

It is an amenable number.

138682085 is a deficient number, since it is larger than the sum of its proper divisors (27879835).

138682085 is a wasteful number, since it uses less digits than its factorization.

138682085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23907.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 138682085 is about 11776.3358053344. The cubic root of 138682085 is about 517.6149215396.

The spelling of 138682085 in words is "one hundred thirty-eight million, six hundred eighty-two thousand, eighty-five".