13240325 has 12 divisors (see below), whose sum is σ = 18763680. Its totient is φ = 9078960.

The previous prime is 13240319. The next prime is 13240333. The reversal of 13240325 is 52304231.

It is a happy number.

It is not a de Polignac number, because 13240325 - 2⁴ = 13240309 is a prime.

It is a super-3 number, since 3×13240325³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13240297 and 13240306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37655 + ... + 38004.

It is an arithmetic number, because the mean of its divisors is an integer number (1563640).

Almost surely, 2^13240325 is an apocalyptic number.

It is an amenable number.

13240325 is a deficient number, since it is larger than the sum of its proper divisors (5523355).

13240325 is an equidigital number, since it uses as much as digits as its factorization.

13240325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75676 (or 75671 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13240325 is about 3638.7257384969. The cubic root of 13240325 is about 236.5735653991.

Adding to 13240325 its reverse (52304231), we get a palindrome (65544556).

The spelling of 13240325 in words is "thirteen million, two hundred forty thousand, three hundred twenty-five".