13171225 has 12 divisors (see below), whose sum is σ = 16405200. Its totient is φ = 10490000.

The previous prime is 13171183. The next prime is 13171241. The reversal of 13171225 is 52217131.

It is a happy number.

13171225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13171225 - 2⁷ = 13171097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13171196 and 13171205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5226 + ... + 7324.

It is an arithmetic number, because the mean of its divisors is an integer number (1367100).

Almost surely, 2^13171225 is an apocalyptic number.

It is an amenable number.

13171225 is a deficient number, since it is larger than the sum of its proper divisors (3233975).

13171225 is a wasteful number, since it uses less digits than its factorization.

13171225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360 (or 2355 counting only the distinct ones).

The product of its digits is 420, while the sum is 22.

The square root of 13171225 is about 3629.2182353780. The cubic root of 13171225 is about 236.1612957020.

Adding to 13171225 its reverse (52217131), we get a palindrome (65388356).

The spelling of 13171225 in words is "thirteen million, one hundred seventy-one thousand, two hundred twenty-five".