117919271 has 4 divisors (see below), whose sum is σ = 119412000. Its totient is φ = 116426544.

The previous prime is 117919261. The next prime is 117919273. The reversal of 117919271 is 172919711.

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 117919271 - 2¹⁰ = 117918247 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 (117919273) 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, 746246 + ... + 746403.

It is an arithmetic number, because the mean of its divisors is an integer number (29853000).

Almost surely, 2^117919271 is an apocalyptic number.

117919271 is a deficient number, since it is larger than the sum of its proper divisors (1492729).

117919271 is an equidigital number, since it uses as much as digits as its factorization.

117919271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492728.

The product of its digits is 7938, while the sum is 38.

The square root of 117919271 is about 10859.0640020215. The cubic root of 117919271 is about 490.3749330866.

The spelling of 117919271 in words is "one hundred seventeen million, nine hundred nineteen thousand, two hundred seventy-one".