116640191 has 2 divisors, whose sum is σ = 116640192. Its totient is φ = 116640190.

The previous prime is 116640157. The next prime is 116640211. The reversal of 116640191 is 191046611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 116640191 - 2⁶ = 116640127 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116640131) 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, 58320095 + 58320096.

It is an arithmetic number, because the mean of its divisors is an integer number (58320096).

Almost surely, 2^116640191 is an apocalyptic number.

116640191 is a deficient number, since it is larger than the sum of its proper divisors (1).

116640191 is an equidigital number, since it uses as much as digits as its factorization.

116640191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 116640191 is about 10800.0088425890. The cubic root of 116640191 is about 488.5954376813.

The spelling of 116640191 in words is "one hundred sixteen million, six hundred forty thousand, one hundred ninety-one".