117155171 has 12 divisors (see below), whose sum is σ = 134913072. Its totient is φ = 99657264.

The previous prime is 117155153. The next prime is 117155267. The reversal of 117155171 is 171551711.

It is not a de Polignac number, because 117155171 - 2¹⁴ = 117138787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117155111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399701 + ... + 399993.

It is an arithmetic number, because the mean of its divisors is an integer number (11242756).

Almost surely, 2^117155171 is an apocalyptic number.

117155171 is a deficient number, since it is larger than the sum of its proper divisors (17757901).

117155171 is an frugal number, since it uses more digits than its factorization.

117155171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778 (or 539 counting only the distinct ones).

The product of its digits is 1225, while the sum is 29.

The square root of 117155171 is about 10823.8242317584. The cubic root of 117155171 is about 489.3134505608.

The spelling of 117155171 in words is "one hundred seventeen million, one hundred fifty-five thousand, one hundred seventy-one".