133230213 has 6 divisors (see below), whose sum is σ = 192443654. Its totient is φ = 88820136.

The previous prime is 133230199. The next prime is 133230217. The reversal of 133230213 is 312032331.

It can be written as a sum of positive squares in only one way, i.e., 109872324 + 23357889 = 10482^2 + 4833^2 .

It is not a de Polignac number, because 133230213 - 2¹⁰ = 133229189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133230217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7401670 + ... + 7401687.

Almost surely, 2^133230213 is an apocalyptic number.

It is an amenable number.

133230213 is a deficient number, since it is larger than the sum of its proper divisors (59213441).

133230213 is a wasteful number, since it uses less digits than its factorization.

133230213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14803363 (or 14803360 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 133230213 is about 11542.5392786856. The cubic root of 133230213 is about 510.7412174877.

Adding to 133230213 its reverse (312032331), we get a palindrome (445262544).

The spelling of 133230213 in words is "one hundred thirty-three million, two hundred thirty thousand, two hundred thirteen".