117168257 has 2 divisors, whose sum is σ = 117168258. Its totient is φ = 117168256.

The previous prime is 117168253. The next prime is 117168263. The reversal of 117168257 is 752861711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96746896 + 20421361 = 9836^2 + 4519^2 .

It is a cyclic number.

It is not a de Polignac number, because 117168257 - 2² = 117168253 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 117168257.

It is not a weakly prime, because it can be changed into another prime (117168253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58584128 + 58584129.

It is an arithmetic number, because the mean of its divisors is an integer number (58584129).

Almost surely, 2^117168257 is an apocalyptic number.

It is an amenable number.

117168257 is a deficient number, since it is larger than the sum of its proper divisors (1).

117168257 is an equidigital number, since it uses as much as digits as its factorization.

117168257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 38.

The square root of 117168257 is about 10824.4287147175. The cubic root of 117168257 is about 489.3316683295.

The spelling of 117168257 in words is "one hundred seventeen million, one hundred sixty-eight thousand, two hundred fifty-seven".