13133825 has 6 divisors (see below), whose sum is σ = 16285974. Its totient is φ = 10507040.

The previous prime is 13133803. The next prime is 13133867. The reversal of 13133825 is 52833131.

It can be written as a sum of positive squares in 3 ways, for example, as 231361 + 12902464 = 481^2 + 3592^2 .

It is not a de Polignac number, because 13133825 - 2²² = 8939521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13133794 and 13133803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 262652 + ... + 262701.

It is an arithmetic number, because the mean of its divisors is an integer number (2714329).

Almost surely, 2^13133825 is an apocalyptic number.

It is an amenable number.

13133825 is a deficient number, since it is larger than the sum of its proper divisors (3152149).

13133825 is an equidigital number, since it uses as much as digits as its factorization.

13133825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525363 (or 525358 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 13133825 is about 3624.0619475942. The cubic root of 13133825 is about 235.9375552973.

Adding to 13133825 its reverse (52833131), we get a palindrome (65966956).

The spelling of 13133825 in words is "thirteen million, one hundred thirty-three thousand, eight hundred twenty-five".