133683225 has 72 divisors (see below), whose sum is σ = 245073600. Its totient is φ = 64247040.

The previous prime is 133683217. The next prime is 133683229. The reversal of 133683225 is 522386331.

It is not a de Polignac number, because 133683225 - 2³ = 133683217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133683229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 671676 + ... + 671874.

It is an arithmetic number, because the mean of its divisors is an integer number (3403800).

Almost surely, 2^133683225 is an apocalyptic number.

133683225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133683225 is a deficient number, since it is larger than the sum of its proper divisors (111390375).

133683225 is a wasteful number, since it uses less digits than its factorization.

133683225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 273 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 133683225 is about 11562.1462108036. The cubic root of 133683225 is about 511.3194400770.

The spelling of 133683225 in words is "one hundred thirty-three million, six hundred eighty-three thousand, two hundred twenty-five".