13171155 has 8 divisors (see below), whose sum is σ = 21073872. Its totient is φ = 7024608.

The previous prime is 13171129. The next prime is 13171159. The reversal of 13171155 is 55117131.

13171155 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13171155 - 2¹² = 13167059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13171159) 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, 439024 + ... + 439053.

It is an arithmetic number, because the mean of its divisors is an integer number (2634234).

Almost surely, 2^13171155 is an apocalyptic number.

13171155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13171155 is a deficient number, since it is larger than the sum of its proper divisors (7902717).

13171155 is an equidigital number, since it uses as much as digits as its factorization.

13171155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878085.

The product of its digits is 525, while the sum is 24.

The square root of 13171155 is about 3629.2085914149. The cubic root of 13171155 is about 236.1608773324.

Adding to 13171155 its reverse (55117131), we get a palindrome (68288286).

The spelling of 13171155 in words is "thirteen million, one hundred seventy-one thousand, one hundred fifty-five".