117218107 has 2 divisors, whose sum is σ = 117218108. Its totient is φ = 117218106.

The previous prime is 117218083. The next prime is 117218137. The reversal of 117218107 is 701812711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117218107 - 2⁷ = 117217979 is a prime.

It is not a weakly prime, because it can be changed into another prime (117218137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58609053 + 58609054.

It is an arithmetic number, because the mean of its divisors is an integer number (58609054).

Almost surely, 2^117218107 is an apocalyptic number.

117218107 is a deficient number, since it is larger than the sum of its proper divisors (1).

117218107 is an equidigital number, since it uses as much as digits as its factorization.

117218107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 28.

The square root of 117218107 is about 10826.7311317867. The cubic root of 117218107 is about 489.4010549412.

The spelling of 117218107 in words is "one hundred seventeen million, two hundred eighteen thousand, one hundred seven".