133306391225 has 48 divisors (see below), whose sum is σ = 200116656000. Its totient is φ = 85994388480.

The previous prime is 133306391209. The next prime is 133306391263. The reversal of 133306391225 is 522193603331.

It is a happy number.

It is not a de Polignac number, because 133306391225 - 2⁴ = 133306391209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7574486 + ... + 7592064.

It is an arithmetic number, because the mean of its divisors is an integer number (4169097000).

Almost surely, 2^133306391225 is an apocalyptic number.

It is an amenable number.

133306391225 is a deficient number, since it is larger than the sum of its proper divisors (66810264775).

133306391225 is a wasteful number, since it uses less digits than its factorization.

133306391225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20162 (or 20157 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 38.

Adding to 133306391225 its reverse (522193603331), we get a palindrome (655499994556).

The spelling of 133306391225 in words is "one hundred thirty-three billion, three hundred six million, three hundred ninety-one thousand, two hundred twenty-five".