213663319 has 2 divisors, whose sum is σ = 213663320. Its totient is φ = 213663318.

The previous prime is 213663287. The next prime is 213663337. The reversal of 213663319 is 913366312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213663319 - 2⁵ = 213663287 is a prime.

It is a super-2 number, since 2×213663319² = 91304027772191522, which contains 22 as substring.

It is equal to p_11792482 and since 213663319 and 11792482 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213663719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106831659 + 106831660.

It is an arithmetic number, because the mean of its divisors is an integer number (106831660).

Almost surely, 2^213663319 is an apocalyptic number.

213663319 is a deficient number, since it is larger than the sum of its proper divisors (1).

213663319 is an equidigital number, since it uses as much as digits as its factorization.

213663319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 34.

The square root of 213663319 is about 14617.2267889638. The cubic root of 213663319 is about 597.8285573565.

The spelling of 213663319 in words is "two hundred thirteen million, six hundred sixty-three thousand, three hundred nineteen".