138716673 has 8 divisors (see below), whose sum is σ = 185037600. Its totient is φ = 92436768.

The previous prime is 138716671. The next prime is 138716687. The reversal of 138716673 is 376617831.

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

It is not a de Polignac number, because 138716673 - 2¹ = 138716671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138716671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228 + ... + 16701.

It is an arithmetic number, because the mean of its divisors is an integer number (23129700).

Almost surely, 2^138716673 is an apocalyptic number.

It is an amenable number.

138716673 is a deficient number, since it is larger than the sum of its proper divisors (46320927).

138716673 is a wasteful number, since it uses less digits than its factorization.

138716673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20511.

The product of its digits is 127008, while the sum is 42.

The square root of 138716673 is about 11777.8042520667. The cubic root of 138716673 is about 517.6579498724.

The spelling of 138716673 in words is "one hundred thirty-eight million, seven hundred sixteen thousand, six hundred seventy-three".