2163725443 has 4 divisors (see below), whose sum is σ = 2360427768. Its totient is φ = 1967023120.

The previous prime is 2163725419. The next prime is 2163725503. The reversal of 2163725443 is 3445273612.

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 2163725443 - 2¹³ = 2163717251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163725143) 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, 98351146 + ... + 98351167.

It is an arithmetic number, because the mean of its divisors is an integer number (590106942).

Almost surely, 2^2163725443 is an apocalyptic number.

2163725443 is a deficient number, since it is larger than the sum of its proper divisors (196702325).

2163725443 is a wasteful number, since it uses less digits than its factorization.

2163725443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196702324.

The product of its digits is 120960, while the sum is 37.

The square root of 2163725443 is about 46515.8622729924. The cubic root of 2163725443 is about 1293.4035560249.

The spelling of 2163725443 in words is "two billion, one hundred sixty-three million, seven hundred twenty-five thousand, four hundred forty-three".