213320189 has 2 divisors, whose sum is σ = 213320190. Its totient is φ = 213320188.

The previous prime is 213320183. The next prime is 213320203. The reversal of 213320189 is 981023312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211120900 + 2199289 = 14530^2 + 1483^2 .

It is a cyclic number.

It is not a de Polignac number, because 213320189 - 2⁸ = 213319933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213320183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106660094 + 106660095.

It is an arithmetic number, because the mean of its divisors is an integer number (106660095).

Almost surely, 2^213320189 is an apocalyptic number.

It is an amenable number.

213320189 is a deficient number, since it is larger than the sum of its proper divisors (1).

213320189 is an equidigital number, since it uses as much as digits as its factorization.

213320189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 213320189 is about 14605.4848943813. The cubic root of 213320189 is about 597.5083607310.

It can be divided in two parts, 2133 and 20189, that added together give a palindrome (22322).

The spelling of 213320189 in words is "two hundred thirteen million, three hundred twenty thousand, one hundred eighty-nine".