115548609 has 32 divisors (see below), whose sum is σ = 181025280. Its totient is φ = 64774400.

The previous prime is 115548569. The next prime is 115548623. The reversal of 115548609 is 906845511.

It is a cyclic number.

It is not a de Polignac number, because 115548609 - 2¹⁶ = 115483073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115548659) 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, 31354 + ... + 34844.

It is an arithmetic number, because the mean of its divisors is an integer number (5657040).

Almost surely, 2^115548609 is an apocalyptic number.

It is an amenable number.

115548609 is a deficient number, since it is larger than the sum of its proper divisors (65476671).

115548609 is a wasteful number, since it uses less digits than its factorization.

115548609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 115548609 is about 10749.3538875599. The cubic root of 115548609 is about 487.0664779729.

The spelling of 115548609 in words is "one hundred fifteen million, five hundred forty-eight thousand, six hundred nine".