115875009 has 32 divisors (see below), whose sum is σ = 186704640. Its totient is φ = 70730496.

The previous prime is 115874999. The next prime is 115875031. The reversal of 115875009 is 900578511.

It is not a de Polignac number, because 115875009 - 2¹² = 115870913 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115875049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13572 + ... + 20394.

It is an arithmetic number, because the mean of its divisors is an integer number (5834520).

Almost surely, 2^115875009 is an apocalyptic number.

It is an amenable number.

115875009 is a deficient number, since it is larger than the sum of its proper divisors (70829631).

115875009 is a wasteful number, since it uses less digits than its factorization.

115875009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886 (or 6880 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The square root of 115875009 is about 10764.5254888453. The cubic root of 115875009 is about 487.5246662076.

It can be divided in two parts, 1158 and 75009, that added together give a palindrome (76167).

The spelling of 115875009 in words is "one hundred fifteen million, eight hundred seventy-five thousand, nine".