118478183 has 2 divisors, whose sum is σ = 118478184. Its totient is φ = 118478182.

The previous prime is 118478159. The next prime is 118478189. The reversal of 118478183 is 381874811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118478183 - 2⁸ = 118477927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118478183.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118478189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59239091 + 59239092.

It is an arithmetic number, because the mean of its divisors is an integer number (59239092).

Almost surely, 2^118478183 is an apocalyptic number.

118478183 is a deficient number, since it is larger than the sum of its proper divisors (1).

118478183 is an equidigital number, since it uses as much as digits as its factorization.

118478183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 41.

The square root of 118478183 is about 10884.7683944124. The cubic root of 118478183 is about 491.1484695007.

The spelling of 118478183 in words is "one hundred eighteen million, four hundred seventy-eight thousand, one hundred eighty-three".