213215333 has 2 divisors, whose sum is σ = 213215334. Its totient is φ = 213215332.

The previous prime is 213215329. The next prime is 213215341. The reversal of 213215333 is 333512312.

213215333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153338689 + 59876644 = 12383^2 + 7738^2 .

It is a cyclic number.

It is not a de Polignac number, because 213215333 - 2² = 213215329 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 213215299 and 213215308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213215323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106607666 + 106607667.

It is an arithmetic number, because the mean of its divisors is an integer number (106607667).

Almost surely, 2^213215333 is an apocalyptic number.

It is an amenable number.

213215333 is a deficient number, since it is larger than the sum of its proper divisors (1).

213215333 is an equidigital number, since it uses as much as digits as its factorization.

213215333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 23.

The square root of 213215333 is about 14601.8948427935. The cubic root of 213215333 is about 597.4104443778.

Adding to 213215333 its reverse (333512312), we get a palindrome (546727645).

The spelling of 213215333 in words is "two hundred thirteen million, two hundred fifteen thousand, three hundred thirty-three".