138102117 has 8 divisors (see below), whose sum is σ = 190076160. Its totient is φ = 89098080.

The previous prime is 138102113. The next prime is 138102119. The reversal of 138102117 is 711201831.

It is a happy number.

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

It is not a de Polignac number, because 138102117 - 2² = 138102113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138102113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742392 + ... + 742577.

It is an arithmetic number, because the mean of its divisors is an integer number (23759520).

Almost surely, 2^138102117 is an apocalyptic number.

It is an amenable number.

138102117 is a deficient number, since it is larger than the sum of its proper divisors (51974043).

138102117 is a wasteful number, since it uses less digits than its factorization.

138102117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485003.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 138102117 is about 11751.6857088675. The cubic root of 138102117 is about 516.8923587457.

Adding to 138102117 its reverse (711201831), we get a palindrome (849303948).

The spelling of 138102117 in words is "one hundred thirty-eight million, one hundred two thousand, one hundred seventeen".