117591271 has 16 divisors (see below), whose sum is σ = 136417600. Its totient is φ = 99283968.

The previous prime is 117591269. The next prime is 117591293. The reversal of 117591271 is 172195711.

It is not a de Polignac number, because 117591271 - 2¹ = 117591269 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 (117591211) 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 15 ways as a sum of consecutive naturals, for example, 174391 + ... + 175063.

It is an arithmetic number, because the mean of its divisors is an integer number (8526100).

Almost surely, 2^117591271 is an apocalyptic number.

117591271 is a deficient number, since it is larger than the sum of its proper divisors (18826329).

117591271 is a wasteful number, since it uses less digits than its factorization.

117591271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018.

The product of its digits is 4410, while the sum is 34.

The square root of 117591271 is about 10843.9508943927. The cubic root of 117591271 is about 489.9198411150.

The spelling of 117591271 in words is "one hundred seventeen million, five hundred ninety-one thousand, two hundred seventy-one".