13671325 has 24 divisors (see below), whose sum is σ = 17800200. Its totient is φ = 10402560.

The previous prime is 13671319. The next prime is 13671347. The reversal of 13671325 is 52317631.

It can be written as a sum of positive squares in 12 ways, for example, as 443556 + 13227769 = 666^2 + 3637^2 .

It is not a de Polignac number, because 13671325 - 2¹⁷ = 13540253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13671293 and 13671302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78939 + ... + 79111.

It is an arithmetic number, because the mean of its divisors is an integer number (741675).

Almost surely, 2^13671325 is an apocalyptic number.

It is an amenable number.

13671325 is a deficient number, since it is larger than the sum of its proper divisors (4128875).

13671325 is a wasteful number, since it uses less digits than its factorization.

13671325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 316 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 13671325 is about 3697.4754901148. The cubic root of 13671325 is about 239.1131913665.

Adding to 13671325 its reverse (52317631), we get a palindrome (65988956).

The spelling of 13671325 in words is "thirteen million, six hundred seventy-one thousand, three hundred twenty-five".