213303269 has 2 divisors, whose sum is σ = 213303270. Its totient is φ = 213303268.

The previous prime is 213303229. The next prime is 213303283. The reversal of 213303269 is 962303312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184552225 + 28751044 = 13585^2 + 5362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213303269 is a prime.

It is a super-2 number, since 2×213303269² = 90996569132172722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213303229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106651634 + 106651635.

It is an arithmetic number, because the mean of its divisors is an integer number (106651635).

Almost surely, 2^213303269 is an apocalyptic number.

It is an amenable number.

213303269 is a deficient number, since it is larger than the sum of its proper divisors (1).

213303269 is an equidigital number, since it uses as much as digits as its factorization.

213303269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 213303269 is about 14604.9056484457. The cubic root of 213303269 is about 597.4925627127.

The spelling of 213303269 in words is "two hundred thirteen million, three hundred three thousand, two hundred sixty-nine".