13209025 has 12 divisors (see below), whose sum is σ = 16445872. Its totient is φ = 10524240.

The previous prime is 13209019. The next prime is 13209089. The reversal of 13209025 is 52090231.

13209025 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13209025 - 2¹³ = 13200833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13208987 and 13209005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6142 + ... + 8008.

Almost surely, 2^13209025 is an apocalyptic number.

It is an amenable number.

13209025 is a deficient number, since it is larger than the sum of its proper divisors (3236847).

13209025 is a wasteful number, since it uses less digits than its factorization.

13209025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160 (or 2155 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 13209025 is about 3634.4222374402. The cubic root of 13209025 is about 236.3869991027.

Adding to 13209025 its reverse (52090231), we get a palindrome (65299256).

The spelling of 13209025 in words is "thirteen million, two hundred nine thousand, twenty-five".