118871117 has 2 divisors, whose sum is σ = 118871118. Its totient is φ = 118871116.

The previous prime is 118871113. The next prime is 118871147. The reversal of 118871117 is 711178811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97397161 + 21473956 = 9869^2 + 4634^2 .

It is a cyclic number.

It is not a de Polignac number, because 118871117 - 2² = 118871113 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 (118871113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59435558 + 59435559.

It is an arithmetic number, because the mean of its divisors is an integer number (59435559).

Almost surely, 2^118871117 is an apocalyptic number.

It is an amenable number.

118871117 is a deficient number, since it is larger than the sum of its proper divisors (1).

118871117 is an equidigital number, since it uses as much as digits as its factorization.

118871117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3136, while the sum is 35.

The square root of 118871117 is about 10902.8031716619. The cubic root of 118871117 is about 491.6908365149.

The spelling of 118871117 in words is "one hundred eighteen million, eight hundred seventy-one thousand, one hundred seventeen".