213134333 has 2 divisors, whose sum is σ = 213134334. Its totient is φ = 213134332.

The previous prime is 213134329. The next prime is 213134371. The reversal of 213134333 is 333431312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199459129 + 13675204 = 14123^2 + 3698^2 .

It is a cyclic number.

It is not a de Polignac number, because 213134333 - 2² = 213134329 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 213134299 and 213134308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213134323) by changing a digit.

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 as a sum of consecutive naturals, namely, 106567166 + 106567167.

It is an arithmetic number, because the mean of its divisors is an integer number (106567167).

Almost surely, 2^213134333 is an apocalyptic number.

It is an amenable number.

213134333 is a deficient number, since it is larger than the sum of its proper divisors (1).

213134333 is an equidigital number, since it uses as much as digits as its factorization.

213134333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 23.

The square root of 213134333 is about 14599.1209666884. The cubic root of 213134333 is about 597.3347831916.

Adding to 213134333 its reverse (333431312), we get a palindrome (546565645).

The spelling of 213134333 in words is "two hundred thirteen million, one hundred thirty-four thousand, three hundred thirty-three".