118909999 has 8 divisors (see below), whose sum is σ = 134797040. Its totient is φ = 103985856.

The previous prime is 118909997. The next prime is 118910039. The reversal of 118909999 is 999909811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 118909999 - 2¹ = 118909997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118909991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240462 + ... + 240955.

It is an arithmetic number, because the mean of its divisors is an integer number (16849630).

Almost surely, 2^118909999 is an apocalyptic number.

118909999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

118909999 is a deficient number, since it is larger than the sum of its proper divisors (15887041).

118909999 is a wasteful number, since it uses less digits than its factorization.

118909999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481449.

The product of its (nonzero) digits is 472392, while the sum is 55.

The square root of 118909999 is about 10904.5861452877. The cubic root of 118909999 is about 491.7444403381.

The spelling of 118909999 in words is "one hundred eighteen million, nine hundred nine thousand, nine hundred ninety-nine".