133030225 has 12 divisors (see below), whose sum is σ = 165745840. Its totient is φ = 105915600.

The previous prime is 133030217. The next prime is 133030243. The reversal of 133030225 is 522030331.

It is not a de Polignac number, because 133030225 - 2³ = 133030217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7335 + ... + 17884.

Almost surely, 2^133030225 is an apocalyptic number.

It is an amenable number.

133030225 is a deficient number, since it is larger than the sum of its proper divisors (32715615).

133030225 is a wasteful number, since it uses less digits than its factorization.

133030225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25440 (or 25435 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 133030225 is about 11533.8729401706. The cubic root of 133030225 is about 510.4855365815.

Adding to 133030225 its reverse (522030331), we get a palindrome (655060556).

The spelling of 133030225 in words is "one hundred thirty-three million, thirty thousand, two hundred twenty-five".