115055217 has 6 divisors (see below), whose sum is σ = 166190882. Its totient is φ = 76703472.

The previous prime is 115055197. The next prime is 115055219. The reversal of 115055217 is 712550511.

It can be written as a sum of positive squares in only one way, i.e., 62869041 + 52186176 = 7929^2 + 7224^2 .

It is not a de Polignac number, because 115055217 - 2¹⁶ = 114989681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115055219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6391948 + ... + 6391965.

Almost surely, 2^115055217 is an apocalyptic number.

It is an amenable number.

115055217 is a deficient number, since it is larger than the sum of its proper divisors (51135665).

115055217 is a wasteful number, since it uses less digits than its factorization.

115055217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12783919 (or 12783916 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 27.

The square root of 115055217 is about 10726.3794917018. The cubic root of 115055217 is about 486.3722317244.

The spelling of 115055217 in words is "one hundred fifteen million, fifty-five thousand, two hundred seventeen".