2174450161 has 27 divisors (see below), whose sum is σ = 2513144673. Its totient is φ = 1880161920.

The previous prime is 2174450149. The next prime is 2174450177. The reversal of 2174450161 is 1610544712.

The square root of 2174450161 is 46631.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 19633761 + 2154816400 = 4431^2 + 46420^2 .

It is not a de Polignac number, because 2174450161 - 2⁹ = 2174449649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2174450141) 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 26 ways as a sum of consecutive naturals, for example, 10305346 + ... + 10305556.

Almost surely, 2^2174450161 is an apocalyptic number.

2174450161 is the 46631-st square number.

2174450161 is the 23316-th centered octagonal number.

It is an amenable number.

2174450161 is a deficient number, since it is larger than the sum of its proper divisors (338694512).

2174450161 is an equidigital number, since it uses as much as digits as its factorization.

2174450161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The cubic root of 2174450161 is about 1295.5369956818.

Adding to 2174450161 its reverse (1610544712), we get a palindrome (3784994873).

The spelling of 2174450161 in words is "two billion, one hundred seventy-four million, four hundred fifty thousand, one hundred sixty-one".