117511697 has 2 divisors, whose sum is σ = 117511698. Its totient is φ = 117511696.

The previous prime is 117511687. The next prime is 117511711. The reversal of 117511697 is 796115711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95082001 + 22429696 = 9751^2 + 4736^2 .

It is an emirp because it is prime and its reverse (796115711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117511697 is a prime.

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 117511697.

It is not a weakly prime, because it can be changed into another prime (117511627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58755848 + 58755849.

It is an arithmetic number, because the mean of its divisors is an integer number (58755849).

Almost surely, 2^117511697 is an apocalyptic number.

It is an amenable number.

117511697 is a deficient number, since it is larger than the sum of its proper divisors (1).

117511697 is an equidigital number, since it uses as much as digits as its factorization.

117511697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13230, while the sum is 38.

The square root of 117511697 is about 10840.2812232894. The cubic root of 117511697 is about 489.8093066110.

The spelling of 117511697 in words is "one hundred seventeen million, five hundred eleven thousand, six hundred ninety-seven".