117155 has 4 divisors (see below), whose sum is σ = 140592. Its totient is φ = 93720.

The previous prime is 117133. The next prime is 117163. The reversal of 117155 is 551711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551711 = 89 ⋅6199.

It is not a de Polignac number, because 117155 - 2¹⁰ = 116131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11711 + ... + 11720.

It is an arithmetic number, because the mean of its divisors is an integer number (35148).

2¹¹⁷¹⁵⁵ is an apocalyptic number.

117155 is a deficient number, since it is larger than the sum of its proper divisors (23437).

117155 is an equidigital number, since it uses as much as digits as its factorization.

117155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23436.

The product of its digits is 175, while the sum is 20.

The square root of 117155 is about 342.2791258608. The cubic root of 117155 is about 48.9313212493.

Adding to 117155 its reverse (551711), we get a palindrome (668866).

It can be divided in two parts, 117 and 155, that added together give a palindrome (272).

The spelling of 117155 in words is "one hundred seventeen thousand, one hundred fifty-five".