117711277 has 2 divisors, whose sum is σ = 117711278. Its totient is φ = 117711276.

The previous prime is 117711241. The next prime is 117711283. The reversal of 117711277 is 772117711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89472681 + 28238596 = 9459^2 + 5314^2 .

It is an emirp because it is prime and its reverse (772117711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117711277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117711577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58855638 + 58855639.

It is an arithmetic number, because the mean of its divisors is an integer number (58855639).

Almost surely, 2^117711277 is an apocalyptic number.

It is an amenable number.

117711277 is a deficient number, since it is larger than the sum of its proper divisors (1).

117711277 is an equidigital number, since it uses as much as digits as its factorization.

117711277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4802, while the sum is 34.

The square root of 117711277 is about 10849.4827987329. The cubic root of 117711277 is about 490.0864445572.

Adding to 117711277 its reverse (772117711), we get a palindrome (889828988).

The spelling of 117711277 in words is "one hundred seventeen million, seven hundred eleven thousand, two hundred seventy-seven".