13540325 has 6 divisors (see below), whose sum is σ = 16790034. Its totient is φ = 10832240.

The previous prime is 13540309. The next prime is 13540333. The reversal of 13540325 is 52304531.

It can be written as a sum of positive squares in 3 ways, for example, as 247009 + 13293316 = 497^2 + 3646^2 .

It is not a de Polignac number, because 13540325 - 2⁴ = 13540309 is a prime.

It is a super-2 number, since 2×13540325² = 366680802211250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13540325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270782 + ... + 270831.

It is an arithmetic number, because the mean of its divisors is an integer number (2798339).

Almost surely, 2^13540325 is an apocalyptic number.

It is an amenable number.

13540325 is a deficient number, since it is larger than the sum of its proper divisors (3249709).

13540325 is an equidigital number, since it uses as much as digits as its factorization.

13540325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541623 (or 541618 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 13540325 is about 3679.7180598519. The cubic root of 13540325 is about 238.3470034161.

Adding to 13540325 its reverse (52304531), we get a palindrome (65844856).

The spelling of 13540325 in words is "thirteen million, five hundred forty thousand, three hundred twenty-five".