1117711757 has 2 divisors, whose sum is σ = 1117711758. Its totient is φ = 1117711756.

The previous prime is 1117711739. The next prime is 1117711759. The reversal of 1117711757 is 7571177111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 950242276 + 167469481 = 30826^2 + 12941^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117711757 - 2²² = 1113517453 is a prime.

Together with 1117711759, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1117711757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117711759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558855878 + 558855879.

It is an arithmetic number, because the mean of its divisors is an integer number (558855879).

Almost surely, 2^1117711757 is an apocalyptic number.

It is an amenable number.

1117711757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117711757 is an equidigital number, since it uses as much as digits as its factorization.

1117711757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12005, while the sum is 38.

The square root of 1117711757 is about 33432.1964130387. The cubic root of 1117711757 is about 1037.7910948225.

Adding to 1117711757 its reverse (7571177111), we get a palindrome (8688888868).

The spelling of 1117711757 in words is "one billion, one hundred seventeen million, seven hundred eleven thousand, seven hundred fifty-seven".