118988789 has 2 divisors, whose sum is σ = 118988790. Its totient is φ = 118988788.

The previous prime is 118988767. The next prime is 118988791. The reversal of 118988789 is 987889811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87740689 + 31248100 = 9367^2 + 5590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118988789 is a prime.

Together with 118988791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118988719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59494394 + 59494395.

It is an arithmetic number, because the mean of its divisors is an integer number (59494395).

Almost surely, 2^118988789 is an apocalyptic number.

It is an amenable number.

118988789 is a deficient number, since it is larger than the sum of its proper divisors (1).

118988789 is an equidigital number, since it uses as much as digits as its factorization.

118988789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 59.

The square root of 118988789 is about 10908.1982471900. The cubic root of 118988789 is about 491.8530266374.

The spelling of 118988789 in words is "one hundred eighteen million, nine hundred eighty-eight thousand, seven hundred eighty-nine".