213433373 has 2 divisors, whose sum is σ = 213433374. Its totient is φ = 213433372.

The previous prime is 213433361. The next prime is 213433397. The reversal of 213433373 is 373334312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206267044 + 7166329 = 14362^2 + 2677^2 .

It is a cyclic number.

It is not a de Polignac number, because 213433373 - 2⁸ = 213433117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213433673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106716686 + 106716687.

It is an arithmetic number, because the mean of its divisors is an integer number (106716687).

Almost surely, 2^213433373 is an apocalyptic number.

It is an amenable number.

213433373 is a deficient number, since it is larger than the sum of its proper divisors (1).

213433373 is an equidigital number, since it uses as much as digits as its factorization.

213433373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 29.

The square root of 213433373 is about 14609.3590892961. The cubic root of 213433373 is about 597.6140179113.

Adding to 213433373 its reverse (373334312), we get a palindrome (586767685).

The spelling of 213433373 in words is "two hundred thirteen million, four hundred thirty-three thousand, three hundred seventy-three".