13155 has 8 divisors (see below), whose sum is σ = 21072.
Its totient is φ = 7008.
The previous prime is 13151. The next prime is 13159. The reversal of 13155 is 55131.
13155 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (13151) and next prime (13159).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13155 - 22 = 13151 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 877 = 13155 / (1 + 3 + 1 + 5 + 5).
It is a nude number because it is divisible by every one of its digits.
13155 is strictly pandigital in base 6.
It is a nialpdrome in base 12.
It is not an unprimeable number, because it can be changed into a prime (13151) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424 + ... + 453.
It is an arithmetic number, because the mean of its divisors is an integer number (2634).
213155 is an apocalyptic number.
13155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
13155 is a deficient number, since it is larger than the sum of its proper divisors (7917).
13155 is an equidigital number, since it uses as much as digits as its factorization.
13155 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 885.
The product of its digits is 75, while the sum is 15.
The square root of 13155 is about 114.6952483759.
The cubic root of 13155 is about 23.6064283934.
Adding to 13155 its reverse (55131), we get a palindrome (68286).
The spelling of 13155 in words is "thirteen thousand, one hundred fifty-five".