268219207 has 2 divisors, whose sum is σ = 268219208. Its totient is φ = 268219206.

The previous prime is 268219187. The next prime is 268219213. The reversal of 268219207 is 702912862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268219207 - 2¹⁹ = 267694919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268219267) 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, 134109603 + 134109604.

It is an arithmetic number, because the mean of its divisors is an integer number (134109604).

Almost surely, 2^268219207 is an apocalyptic number.

268219207 is a deficient number, since it is larger than the sum of its proper divisors (1).

268219207 is an equidigital number, since it uses as much as digits as its factorization.

268219207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 268219207 is about 16377.3992746101. The cubic root of 268219207 is about 644.9063077258.

The spelling of 268219207 in words is "two hundred sixty-eight million, two hundred nineteen thousand, two hundred seven".