118537009 has 8 divisors (see below), whose sum is σ = 124189632. Its totient is φ = 112926000.

The previous prime is 118536983. The next prime is 118537037. The reversal of 118537009 is 900735811.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 118537009 - 2¹⁵ = 118504241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118537049) 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 7 ways as a sum of consecutive naturals, for example, 4494 + ... + 16039.

It is an arithmetic number, because the mean of its divisors is an integer number (15523704).

Almost surely, 2^118537009 is an apocalyptic number.

It is an amenable number.

118537009 is a deficient number, since it is larger than the sum of its proper divisors (5652623).

118537009 is a wasteful number, since it uses less digits than its factorization.

118537009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20807.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 118537009 is about 10887.4702755048. The cubic root of 118537009 is about 491.2297433090.

The spelling of 118537009 in words is "one hundred eighteen million, five hundred thirty-seven thousand, nine".