1127170391 has 2 divisors, whose sum is σ = 1127170392. Its totient is φ = 1127170390.

The previous prime is 1127170381. The next prime is 1127170393. The reversal of 1127170391 is 1930717211.

It is a strong prime.

It is an emirp because it is prime and its reverse (1930717211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1127170391 is a prime.

Together with 1127170393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1127170393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563585195 + 563585196.

It is an arithmetic number, because the mean of its divisors is an integer number (563585196).

Almost surely, 2^1127170391 is an apocalyptic number.

1127170391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1127170391 is an equidigital number, since it uses as much as digits as its factorization.

1127170391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 32.

The square root of 1127170391 is about 33573.3583515263. The cubic root of 1127170391 is about 1040.7103107965.

The spelling of 1127170391 in words is "one billion, one hundred twenty-seven million, one hundred seventy thousand, three hundred ninety-one".