13081325 has 12 divisors (see below), whose sum is σ = 16288020. Its totient is φ = 10421760.

The previous prime is 13081297. The next prime is 13081333. The reversal of 13081325 is 52318031.

It can be written as a sum of positive squares in 6 ways, for example, as 1371241 + 11710084 = 1171^2 + 3422^2 .

It is not a de Polignac number, because 13081325 - 2¹⁶ = 13015789 is a prime.

It is a super-2 number, since 2×13081325² = 342242127511250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13081325.

It is a congruent number.

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, 5981 + ... + 7869.

It is an arithmetic number, because the mean of its divisors is an integer number (1357335).

Almost surely, 2^13081325 is an apocalyptic number.

It is an amenable number.

13081325 is a deficient number, since it is larger than the sum of its proper divisors (3206695).

13081325 is a wasteful number, since it uses less digits than its factorization.

13081325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176 (or 2171 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 13081325 is about 3616.8114410348. The cubic root of 13081325 is about 235.6227634542.

Adding to 13081325 its reverse (52318031), we get a palindrome (65399356).

The spelling of 13081325 in words is "thirteen million, eighty-one thousand, three hundred twenty-five".