115556171 has 2 divisors, whose sum is σ = 115556172. Its totient is φ = 115556170.

The previous prime is 115556167. The next prime is 115556183. The reversal of 115556171 is 171655511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115556171 - 2² = 115556167 is a prime.

It is not a weakly prime, because it can be changed into another prime (115556101) 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 as a sum of consecutive naturals, namely, 57778085 + 57778086.

It is an arithmetic number, because the mean of its divisors is an integer number (57778086).

Almost surely, 2^115556171 is an apocalyptic number.

115556171 is a deficient number, since it is larger than the sum of its proper divisors (1).

115556171 is an equidigital number, since it uses as much as digits as its factorization.

115556171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5250, while the sum is 32.

The square root of 115556171 is about 10749.7056238764. The cubic root of 115556171 is about 487.0771029858.

The spelling of 115556171 in words is "one hundred fifteen million, five hundred fifty-six thousand, one hundred seventy-one".