115544009 has 8 divisors (see below), whose sum is σ = 134745600. Its totient is φ = 99037428.

The previous prime is 115544003. The next prime is 115544041. The reversal of 115544009 is 900445511.

It is not a de Polignac number, because 115544009 - 2¹² = 115539913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115544003) 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, 168089 + ... + 168774.

It is an arithmetic number, because the mean of its divisors is an integer number (16843200).

Almost surely, 2^115544009 is an apocalyptic number.

It is an amenable number.

115544009 is a deficient number, since it is larger than the sum of its proper divisors (19201591).

115544009 is an frugal number, since it uses more digits than its factorization.

115544009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336884 (or 336870 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 115544009 is about 10749.1399190819. The cubic root of 115544009 is about 487.0600145011.

The spelling of 115544009 in words is "one hundred fifteen million, five hundred forty-four thousand, nine".