115168217 has 4 divisors (see below), whose sum is σ = 121942836. Its totient is φ = 108393600.

The previous prime is 115168211. The next prime is 115168219. The reversal of 115168217 is 712861511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33825856 + 81342361 = 5816^2 + 9019^2 .

It is a cyclic number.

It is not a de Polignac number, because 115168217 - 2¹⁶ = 115102681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115168211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3387284 + ... + 3387317.

It is an arithmetic number, because the mean of its divisors is an integer number (30485709).

Almost surely, 2^115168217 is an apocalyptic number.

115168217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

115168217 is a deficient number, since it is larger than the sum of its proper divisors (6774619).

115168217 is an equidigital number, since it uses as much as digits as its factorization.

115168217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6774618.

The product of its digits is 3360, while the sum is 32.

The square root of 115168217 is about 10731.6455867681. The cubic root of 115168217 is about 486.5314076999.

The spelling of 115168217 in words is "one hundred fifteen million, one hundred sixty-eight thousand, two hundred seventeen".