1146668191 has 2 divisors, whose sum is σ = 1146668192. Its totient is φ = 1146668190.

The previous prime is 1146668189. The next prime is 1146668209. The reversal of 1146668191 is 1918666411.

It is a weak prime.

It is an emirp because it is prime and its reverse (1918666411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1146668191 - 2¹ = 1146668189 is a prime.

Together with 1146668189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1146668101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573334095 + 573334096.

It is an arithmetic number, because the mean of its divisors is an integer number (573334096).

Almost surely, 2^1146668191 is an apocalyptic number.

1146668191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146668191 is an equidigital number, since it uses as much as digits as its factorization.

1146668191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 43.

The square root of 1146668191 is about 33862.4894389057. The cubic root of 1146668191 is about 1046.6767769296.

The spelling of 1146668191 in words is "one billion, one hundred forty-six million, six hundred sixty-eight thousand, one hundred ninety-one".