268346191 has 2 divisors, whose sum is σ = 268346192. Its totient is φ = 268346190.

The previous prime is 268346161. The next prime is 268346231. The reversal of 268346191 is 191643862.

It is an a-pointer prime, because the next prime (268346231) can be obtained adding 268346191 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268346191 - 2¹¹ = 268344143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268346131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134173095 + 134173096.

It is an arithmetic number, because the mean of its divisors is an integer number (134173096).

Almost surely, 2^268346191 is an apocalyptic number.

268346191 is a deficient number, since it is larger than the sum of its proper divisors (1).

268346191 is an equidigital number, since it uses as much as digits as its factorization.

268346191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 268346191 is about 16381.2756218800. The cubic root of 268346191 is about 645.0080651196.

The spelling of 268346191 in words is "two hundred sixty-eight million, three hundred forty-six thousand, one hundred ninety-one".