2145443043 has 8 divisors (see below), whose sum is σ = 2860901568. Its totient is φ = 1430139944.

The previous prime is 2145443033. The next prime is 2145443077. The reversal of 2145443043 is 3403445412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2145443043 - 2²⁴ = 2128665827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2145443043.

It is not an unprimeable number, because it can be changed into a prime (2145443023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1521 + ... + 65522.

It is an arithmetic number, because the mean of its divisors is an integer number (357612696).

Almost surely, 2^2145443043 is an apocalyptic number.

2145443043 is a deficient number, since it is larger than the sum of its proper divisors (715458525).

2145443043 is a wasteful number, since it uses less digits than its factorization.

2145443043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77713.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 2145443043 is about 46318.9274811065. The cubic root of 2145443043 is about 1289.7503759525.

Adding to 2145443043 its reverse (3403445412), we get a palindrome (5548888455).

The spelling of 2145443043 in words is "two billion, one hundred forty-five million, four hundred forty-three thousand, forty-three".