118589189 has 2 divisors, whose sum is σ = 118589190. Its totient is φ = 118589188.

The previous prime is 118589137. The next prime is 118589213. The reversal of 118589189 is 981985811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64272289 + 54316900 = 8017^2 + 7370^2 .

It is a cyclic number.

It is not a de Polignac number, because 118589189 - 2²⁴ = 101811973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118589389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59294594 + 59294595.

It is an arithmetic number, because the mean of its divisors is an integer number (59294595).

Almost surely, 2^118589189 is an apocalyptic number.

It is an amenable number.

118589189 is a deficient number, since it is larger than the sum of its proper divisors (1).

118589189 is an equidigital number, since it uses as much as digits as its factorization.

118589189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 50.

The square root of 118589189 is about 10889.8663444507. The cubic root of 118589189 is about 491.3018125246.

The spelling of 118589189 in words is "one hundred eighteen million, five hundred eighty-nine thousand, one hundred eighty-nine".