133235225 has 24 divisors (see below), whose sum is σ = 168437880. Its totient is φ = 104529920.

The previous prime is 133235189. The next prime is 133235231. The reversal of 133235225 is 522532331.

It can be written as a sum of positive squares in 12 ways, for example, as 33953929 + 99281296 = 5827^2 + 9964^2 .

It is not a de Polignac number, because 133235225 - 2¹⁰ = 133234201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133235194 and 133235203.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 518297 + ... + 518553.

It is an arithmetic number, because the mean of its divisors is an integer number (7018245).

Almost surely, 2^133235225 is an apocalyptic number.

It is an amenable number.

133235225 is a deficient number, since it is larger than the sum of its proper divisors (35202655).

133235225 is a wasteful number, since it uses less digits than its factorization.

133235225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 584 counting only the distinct ones).

The product of its digits is 5400, while the sum is 26.

The square root of 133235225 is about 11542.7563865829. The cubic root of 133235225 is about 510.7476219481.

Adding to 133235225 its reverse (522532331), we get a palindrome (655767556).

The spelling of 133235225 in words is "one hundred thirty-three million, two hundred thirty-five thousand, two hundred twenty-five".