118478771 has 2 divisors, whose sum is σ = 118478772. Its totient is φ = 118478770.

The previous prime is 118478747. The next prime is 118478779. The reversal of 118478771 is 177874811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118478771 - 2⁶ = 118478707 is a prime.

It is not a weakly prime, because it can be changed into another prime (118478779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59239385 + 59239386.

It is an arithmetic number, because the mean of its divisors is an integer number (59239386).

Almost surely, 2^118478771 is an apocalyptic number.

118478771 is a deficient number, since it is larger than the sum of its proper divisors (1).

118478771 is an equidigital number, since it uses as much as digits as its factorization.

118478771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87808, while the sum is 44.

The square root of 118478771 is about 10884.7954045999. The cubic root of 118478771 is about 491.1492820127.

The spelling of 118478771 in words is "one hundred eighteen million, four hundred seventy-eight thousand, seven hundred seventy-one".