133203225 has 24 divisors (see below), whose sum is σ = 220566240. Its totient is φ = 70933120.

The previous prime is 133203221. The next prime is 133203227. The reversal of 133203225 is 522302331.

It is not a de Polignac number, because 133203225 - 2² = 133203221 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133203221) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 81466 + ... + 83084.

It is an arithmetic number, because the mean of its divisors is an integer number (9190260).

Almost surely, 2^133203225 is an apocalyptic number.

133203225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133203225 is a deficient number, since it is larger than the sum of its proper divisors (87363015).

133203225 is a wasteful number, since it uses less digits than its factorization.

133203225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729 (or 2724 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 133203225 is about 11541.3701526292. The cubic root of 133203225 is about 510.7067287770.

Adding to 133203225 its reverse (522302331), we get a palindrome (655505556).

The spelling of 133203225 in words is "one hundred thirty-three million, two hundred three thousand, two hundred twenty-five".