13133225 has 36 divisors (see below), whose sum is σ = 19338048. Its totient is φ = 8820000.

The previous prime is 13133213. The next prime is 13133233. The reversal of 13133225 is 52233131.

It is not a de Polignac number, because 13133225 - 2⁴ = 13133209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13133197 and 13133206.

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 35 ways as a sum of consecutive naturals, for example, 86900 + ... + 87050.

It is an arithmetic number, because the mean of its divisors is an integer number (537168).

Almost surely, 2^13133225 is an apocalyptic number.

It is an amenable number.

13133225 is a deficient number, since it is larger than the sum of its proper divisors (6204823).

13133225 is a wasteful number, since it uses less digits than its factorization.

13133225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 234 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 13133225 is about 3623.9791666068. The cubic root of 13133225 is about 235.9339624194.

Adding to 13133225 its reverse (52233131), we get a palindrome (65366356).

The spelling of 13133225 in words is "thirteen million, one hundred thirty-three thousand, two hundred twenty-five".