2115105173 has 2 divisors, whose sum is σ = 2115105174. Its totient is φ = 2115105172.

The previous prime is 2115105149. The next prime is 2115105193. The reversal of 2115105173 is 3715015112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1379231044 + 735874129 = 37138^2 + 27127^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115105173 - 2⁸ = 2115104917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2115105193) 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, 1057552586 + 1057552587.

It is an arithmetic number, because the mean of its divisors is an integer number (1057552587).

Almost surely, 2^2115105173 is an apocalyptic number.

It is an amenable number.

2115105173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115105173 is an equidigital number, since it uses as much as digits as its factorization.

2115105173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 2115105173 is about 45990.2725910599. The cubic root of 2115105173 is about 1283.6422087514.

The spelling of 2115105173 in words is "two billion, one hundred fifteen million, one hundred five thousand, one hundred seventy-three".