1117155727 has 2 divisors, whose sum is σ = 1117155728. Its totient is φ = 1117155726.

The previous prime is 1117155709. The next prime is 1117155761. The reversal of 1117155727 is 7275517111.

It is a weak prime.

It is an emirp because it is prime and its reverse (7275517111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1117155727 - 2¹¹ = 1117153679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117158727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558577863 + 558577864.

It is an arithmetic number, because the mean of its divisors is an integer number (558577864).

Almost surely, 2^1117155727 is an apocalyptic number.

1117155727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117155727 is an equidigital number, since it uses as much as digits as its factorization.

1117155727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17150, while the sum is 37.

The square root of 1117155727 is about 33423.8795922915. The cubic root of 1117155727 is about 1037.6189757012.

The spelling of 1117155727 in words is "one billion, one hundred seventeen million, one hundred fifty-five thousand, seven hundred twenty-seven".