3116945191 has 2 divisors, whose sum is σ = 3116945192. Its totient is φ = 3116945190.

The previous prime is 3116945179. The next prime is 3116945263. The reversal of 3116945191 is 1915496113.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3116945191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3116945131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558472595 + 1558472596.

It is an arithmetic number, because the mean of its divisors is an integer number (1558472596).

Almost surely, 2^3116945191 is an apocalyptic number.

3116945191 is a deficient number, since it is larger than the sum of its proper divisors (1).

3116945191 is an equidigital number, since it uses as much as digits as its factorization.

3116945191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 40.

The square root of 3116945191 is about 55829.6085513771. The cubic root of 3116945191 is about 1460.7516600842.

The spelling of 3116945191 in words is "three billion, one hundred sixteen million, nine hundred forty-five thousand, one hundred ninety-one".