138676606 has 8 divisors (see below), whose sum is σ = 209533680. Its totient is φ = 68832048.

The previous prime is 138676553. The next prime is 138676619. The reversal of 138676606 is 606676831.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252786 + ... + 253333.

It is an arithmetic number, because the mean of its divisors is an integer number (26191710).

Almost surely, 2^138676606 is an apocalyptic number.

138676606 is a deficient number, since it is larger than the sum of its proper divisors (70857074).

138676606 is a wasteful number, since it uses less digits than its factorization.

138676606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506258.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 138676606 is about 11776.1031754991. The cubic root of 138676606 is about 517.6081048708.

The spelling of 138676606 in words is "one hundred thirty-eight million, six hundred seventy-six thousand, six hundred six".