117197177 has 2 divisors, whose sum is σ = 117197178. Its totient is φ = 117197176.

The previous prime is 117197161. The next prime is 117197189. The reversal of 117197177 is 771791711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107827456 + 9369721 = 10384^2 + 3061^2 .

It is an emirp because it is prime and its reverse (771791711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117197177 - 2⁴ = 117197161 is a prime.

It is not a weakly prime, because it can be changed into another prime (117197077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58598588 + 58598589.

It is an arithmetic number, because the mean of its divisors is an integer number (58598589).

Almost surely, 2^117197177 is an apocalyptic number.

It is an amenable number.

117197177 is a deficient number, since it is larger than the sum of its proper divisors (1).

117197177 is an equidigital number, since it uses as much as digits as its factorization.

117197177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21609, while the sum is 41.

The square root of 117197177 is about 10825.7644995631. The cubic root of 117197177 is about 489.3719247039.

The spelling of 117197177 in words is "one hundred seventeen million, one hundred ninety-seven thousand, one hundred seventy-seven".