213422533 has 2 divisors, whose sum is σ = 213422534. Its totient is φ = 213422532.

The previous prime is 213422519. The next prime is 213422551. The reversal of 213422533 is 335224312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129095044 + 84327489 = 11362^2 + 9183^2 .

It is a cyclic number.

It is not a de Polignac number, because 213422533 - 2⁵ = 213422501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213422498 and 213422507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213422563) 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 as a sum of consecutive naturals, namely, 106711266 + 106711267.

It is an arithmetic number, because the mean of its divisors is an integer number (106711267).

Almost surely, 2^213422533 is an apocalyptic number.

It is an amenable number.

213422533 is a deficient number, since it is larger than the sum of its proper divisors (1).

213422533 is an equidigital number, since it uses as much as digits as its factorization.

213422533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 25.

The square root of 213422533 is about 14608.9880895290. The cubic root of 213422533 is about 597.6039003970.

Adding to 213422533 its reverse (335224312), we get a palindrome (548646845).

The spelling of 213422533 in words is "two hundred thirteen million, four hundred twenty-two thousand, five hundred thirty-three".