117838127 has 4 divisors (see below), whose sum is σ = 128550696. Its totient is φ = 107125560.

The previous prime is 117838073. The next prime is 117838129. The reversal of 117838127 is 721838711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117838127 - 2¹⁰ = 117837103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117838129) 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, 5356268 + ... + 5356289.

It is an arithmetic number, because the mean of its divisors is an integer number (32137674).

Almost surely, 2^117838127 is an apocalyptic number.

117838127 is a deficient number, since it is larger than the sum of its proper divisors (10712569).

117838127 is a wasteful number, since it uses less digits than its factorization.

117838127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10712568.

The product of its digits is 18816, while the sum is 38.

The square root of 117838127 is about 10855.3271254256. The cubic root of 117838127 is about 490.2624264147.

The spelling of 117838127 in words is "one hundred seventeen million, eight hundred thirty-eight thousand, one hundred twenty-seven".