133210213 has 4 divisors (see below), whose sum is σ = 134529228. Its totient is φ = 131891200.

The previous prime is 133210211. The next prime is 133210219. The reversal of 133210213 is 312012331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312012331 = 101 ⋅3089231.

It can be written as a sum of positive squares in 2 ways, for example, as 117353889 + 15856324 = 10833^2 + 3982^2 .

It is a cyclic number.

It is not a de Polignac number, because 133210213 - 2¹ = 133210211 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 (133210211) 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 3 ways as a sum of consecutive naturals, for example, 659356 + ... + 659557.

It is an arithmetic number, because the mean of its divisors is an integer number (33632307).

Almost surely, 2^133210213 is an apocalyptic number.

It is an amenable number.

133210213 is a deficient number, since it is larger than the sum of its proper divisors (1319015).

133210213 is a wasteful number, since it uses less digits than its factorization.

133210213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319014.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 133210213 is about 11541.6728856782. The cubic root of 133210213 is about 510.7156593821.

Adding to 133210213 its reverse (312012331), we get a palindrome (445222544).

The spelling of 133210213 in words is "one hundred thirty-three million, two hundred ten thousand, two hundred thirteen".