118654389 has 20 divisors (see below), whose sum is σ = 202571424. Its totient is φ = 67802184.

The previous prime is 118654381. The next prime is 118654409. The reversal of 118654389 is 983456811.

It is not a de Polignac number, because 118654389 - 2³ = 118654381 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118654381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 104067 + ... + 105200.

Almost surely, 2^118654389 is an apocalyptic number.

It is an amenable number.

118654389 is a deficient number, since it is larger than the sum of its proper divisors (83917035).

118654389 is an equidigital number, since it uses as much as digits as its factorization.

118654389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209286 (or 209277 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 118654389 is about 10892.8595419201. The cubic root of 118654389 is about 491.3918348100.

The spelling of 118654389 in words is "one hundred eighteen million, six hundred fifty-four thousand, three hundred eighty-nine".