13061225 has 6 divisors (see below), whose sum is σ = 16195950. Its totient is φ = 10448960.

The previous prime is 13061203. The next prime is 13061239. The reversal of 13061225 is 52216031.

13061225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 21904 + 13039321 = 148^2 + 3611^2 .

It is not a de Polignac number, because 13061225 - 2¹² = 13057129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13061197 and 13061206.

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, 261200 + ... + 261249.

It is an arithmetic number, because the mean of its divisors is an integer number (2699325).

Almost surely, 2^13061225 is an apocalyptic number.

It is an amenable number.

13061225 is a deficient number, since it is larger than the sum of its proper divisors (3134725).

13061225 is an equidigital number, since it uses as much as digits as its factorization.

13061225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522459 (or 522454 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 13061225 is about 3614.0316822076. The cubic root of 13061225 is about 235.5020201984.

Adding to 13061225 its reverse (52216031), we get a palindrome (65277256).

The spelling of 13061225 in words is "thirteen million, sixty-one thousand, two hundred twenty-five".