1912117267 has 2 divisors, whose sum is σ = 1912117268. Its totient is φ = 1912117266.

The previous prime is 1912117261. The next prime is 1912117271. The reversal of 1912117267 is 7627112191.

It is a strong prime.

It is an emirp because it is prime and its reverse (7627112191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1912117267 - 2⁷ = 1912117139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1912117261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956058633 + 956058634.

It is an arithmetic number, because the mean of its divisors is an integer number (956058634).

Almost surely, 2^1912117267 is an apocalyptic number.

1912117267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1912117267 is an equidigital number, since it uses as much as digits as its factorization.

1912117267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 37.

The square root of 1912117267 is about 43727.7631145248. The cubic root of 1912117267 is about 1241.1897328713.

The spelling of 1912117267 in words is "one billion, nine hundred twelve million, one hundred seventeen thousand, two hundred sixty-seven".