117202171 has 2 divisors, whose sum is σ = 117202172. Its totient is φ = 117202170.

The previous prime is 117202153. The next prime is 117202177. The reversal of 117202171 is 171202711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117202171 - 2¹¹ = 117200123 is a prime.

It is a super-2 number, since 2×117202171² = 27472697774226482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (117202177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58601085 + 58601086.

It is an arithmetic number, because the mean of its divisors is an integer number (58601086).

Almost surely, 2^117202171 is an apocalyptic number.

117202171 is a deficient number, since it is larger than the sum of its proper divisors (1).

117202171 is an equidigital number, since it uses as much as digits as its factorization.

117202171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 22.

The square root of 117202171 is about 10825.9951505624. The cubic root of 117202171 is about 489.3788756355.

Adding to 117202171 its reverse (171202711), we get a palindrome (288404882).

The spelling of 117202171 in words is "one hundred seventeen million, two hundred two thousand, one hundred seventy-one".