118966489 has 2 divisors, whose sum is σ = 118966490. Its totient is φ = 118966488.

The previous prime is 118966469. The next prime is 118966501. The reversal of 118966489 is 984669811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114126489 + 4840000 = 10683^2 + 2200^2 .

It is an emirp because it is prime and its reverse (984669811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118966489 - 2⁵ = 118966457 is a prime.

It is not a weakly prime, because it can be changed into another prime (118966469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59483244 + 59483245.

It is an arithmetic number, because the mean of its divisors is an integer number (59483245).

Almost surely, 2^118966489 is an apocalyptic number.

It is an amenable number.

118966489 is a deficient number, since it is larger than the sum of its proper divisors (1).

118966489 is an equidigital number, since it uses as much as digits as its factorization.

118966489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 52.

The square root of 118966489 is about 10907.1760323193. The cubic root of 118966489 is about 491.8222982305.

The spelling of 118966489 in words is "one hundred eighteen million, nine hundred sixty-six thousand, four hundred eighty-nine".