117211177 has 2 divisors, whose sum is σ = 117211178. Its totient is φ = 117211176.

The previous prime is 117211139. The next prime is 117211231. The reversal of 117211177 is 771112711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113294736 + 3916441 = 10644^2 + 1979^2 .

It is an emirp because it is prime and its reverse (771112711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117211177 - 2⁷ = 117211049 is a prime.

It is not a weakly prime, because it can be changed into another prime (117211477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58605588 + 58605589.

It is an arithmetic number, because the mean of its divisors is an integer number (58605589).

Almost surely, 2^117211177 is an apocalyptic number.

It is an amenable number.

117211177 is a deficient number, since it is larger than the sum of its proper divisors (1).

117211177 is an equidigital number, since it uses as much as digits as its factorization.

117211177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 686, while the sum is 28.

The square root of 117211177 is about 10826.4110858585. The cubic root of 117211177 is about 489.3914101965.

Adding to 117211177 its reverse (771112711), we get a palindrome (888323888).

The spelling of 117211177 in words is "one hundred seventeen million, two hundred eleven thousand, one hundred seventy-seven".