13431025 has 6 divisors (see below), whose sum is σ = 16654502. Its totient is φ = 10744800.

The previous prime is 13431017. The next prime is 13431053. The reversal of 13431025 is 52013431.

13431025 is digitally balanced in base 3, 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 13456 + 13417569 = 116^2 + 3663^2 .

It is not a de Polignac number, because 13431025 - 2³ = 13431017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13430993 and 13431011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 268596 + ... + 268645.

Almost surely, 2^13431025 is an apocalyptic number.

It is an amenable number.

13431025 is a deficient number, since it is larger than the sum of its proper divisors (3223477).

13431025 is an equidigital number, since it uses as much as digits as its factorization.

13431025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537251 (or 537246 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13431025 is about 3664.8362855658. The cubic root of 13431025 is about 237.7039430127.

Adding to 13431025 its reverse (52013431), we get a palindrome (65444456).

The spelling of 13431025 in words is "thirteen million, four hundred thirty-one thousand, twenty-five".