2185448071 has 4 divisors (see below), whose sum is σ = 2189627272. Its totient is φ = 2181268872.

The previous prime is 2185448059. The next prime is 2185448093. The reversal of 2185448071 is 1708445812.

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

It is a cyclic number.

It is not a de Polignac number, because 2185448071 - 2¹⁷ = 2185316999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185448471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2088816 + ... + 2089861.

It is an arithmetic number, because the mean of its divisors is an integer number (547406818).

Almost surely, 2^2185448071 is an apocalyptic number.

2185448071 is a deficient number, since it is larger than the sum of its proper divisors (4179201).

2185448071 is an equidigital number, since it uses as much as digits as its factorization.

2185448071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179200.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 2185448071 is about 46748.7761444083. The cubic root of 2185448071 is about 1297.7175078475.

The spelling of 2185448071 in words is "two billion, one hundred eighty-five million, four hundred forty-eight thousand, seventy-one".