138841606 has 8 divisors (see below), whose sum is σ = 208569384. Its totient is φ = 69318480.

The previous prime is 138841603. The next prime is 138841613. The reversal of 138841606 is 606148831.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138841603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49455 + ... + 52186.

It is an arithmetic number, because the mean of its divisors is an integer number (26071173).

Almost surely, 2^138841606 is an apocalyptic number.

138841606 is a deficient number, since it is larger than the sum of its proper divisors (69727778).

138841606 is a wasteful number, since it uses less digits than its factorization.

138841606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102326.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 138841606 is about 11783.1068059320. The cubic root of 138841606 is about 517.8133100838.

The spelling of 138841606 in words is "one hundred thirty-eight million, eight hundred forty-one thousand, six hundred six".