133212025 has 12 divisors (see below), whose sum is σ = 169648492. Its totient is φ = 103688640.

The previous prime is 133212011. The next prime is 133212041. The reversal of 133212025 is 520212331.

It can be written as a sum of positive squares in 6 ways, for example, as 63504 + 133148521 = 252^2 + 11539^2 .

It is not a de Polignac number, because 133212025 - 2²³ = 124823417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133211993 and 133212011.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 71082 + ... + 72931.

Almost surely, 2^133212025 is an apocalyptic number.

It is an amenable number.

133212025 is a deficient number, since it is larger than the sum of its proper divisors (36436467).

133212025 is a wasteful number, since it uses less digits than its factorization.

133212025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144060 (or 144055 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 133212025 is about 11541.7513835639. The cubic root of 133212025 is about 510.7179750519.

Adding to 133212025 its reverse (520212331), we get a palindrome (653424356).

The spelling of 133212025 in words is "one hundred thirty-three million, two hundred twelve thousand, twenty-five".