13415225 has 6 divisors (see below), whose sum is σ = 16634910. Its totient is φ = 10732160.

The previous prime is 13415189. The next prime is 13415231. The reversal of 13415225 is 52251431.

It can be written as a sum of positive squares in 3 ways, for example, as 426409 + 12988816 = 653^2 + 3604^2 .

It is not a de Polignac number, because 13415225 - 2⁶ = 13415161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13415225.

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, 268280 + ... + 268329.

It is an arithmetic number, because the mean of its divisors is an integer number (2772485).

Almost surely, 2^13415225 is an apocalyptic number.

It is an amenable number.

13415225 is a deficient number, since it is larger than the sum of its proper divisors (3219685).

13415225 is an equidigital number, since it uses as much as digits as its factorization.

13415225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536619 (or 536614 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 13415225 is about 3662.6800297050. The cubic root of 13415225 is about 237.6106963200.

Adding to 13415225 its reverse (52251431), we get a palindrome (65666656).

The spelling of 13415225 in words is "thirteen million, four hundred fifteen thousand, two hundred twenty-five".