118166771 has 2 divisors, whose sum is σ = 118166772. Its totient is φ = 118166770.

The previous prime is 118166743. The next prime is 118166777. The reversal of 118166771 is 177661811.

It is a strong prime.

It is an emirp because it is prime and its reverse (177661811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118166771 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (118166777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59083385 + 59083386.

It is an arithmetic number, because the mean of its divisors is an integer number (59083386).

Almost surely, 2^118166771 is an apocalyptic number.

118166771 is a deficient number, since it is larger than the sum of its proper divisors (1).

118166771 is an equidigital number, since it uses as much as digits as its factorization.

118166771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 38.

The square root of 118166771 is about 10870.4540383555. The cubic root of 118166771 is about 490.7177749340.

The spelling of 118166771 in words is "one hundred eighteen million, one hundred sixty-six thousand, seven hundred seventy-one".