115326561 has 16 divisors (see below), whose sum is σ = 184985600. Its totient is φ = 62432208.

The previous prime is 115326529. The next prime is 115326581. The reversal of 115326561 is 165623511.

It is not a de Polignac number, because 115326561 - 2⁵ = 115326529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115326511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144121 + ... + 144918.

It is an arithmetic number, because the mean of its divisors is an integer number (11561600).

Almost surely, 2^115326561 is an apocalyptic number.

It is an amenable number.

115326561 is a deficient number, since it is larger than the sum of its proper divisors (69659039).

115326561 is a wasteful number, since it uses less digits than its factorization.

115326561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289068.

The product of its digits is 5400, while the sum is 30.

The square root of 115326561 is about 10739.0204860592. The cubic root of 115326561 is about 486.7542818320.

The spelling of 115326561 in words is "one hundred fifteen million, three hundred twenty-six thousand, five hundred sixty-one".