2170375205 has 4 divisors (see below), whose sum is σ = 2604450252. Its totient is φ = 1736300160.

The previous prime is 2170375199. The next prime is 2170375219. The reversal of 2170375205 is 5025730712.

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 425308129 + 1745067076 = 20623^2 + 41774^2 .

It is not a de Polignac number, because 2170375205 - 2²⁰ = 2169326629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217037516 + ... + 217037525.

It is an arithmetic number, because the mean of its divisors is an integer number (651112563).

Almost surely, 2^2170375205 is an apocalyptic number.

It is an amenable number.

2170375205 is a deficient number, since it is larger than the sum of its proper divisors (434075047).

2170375205 is an equidigital number, since it uses as much as digits as its factorization.

2170375205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434075046.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 2170375205 is about 46587.2858728645. The cubic root of 2170375205 is about 1294.7272036109.

The spelling of 2170375205 in words is "two billion, one hundred seventy million, three hundred seventy-five thousand, two hundred five".