2143545043 has 8 divisors (see below), whose sum is σ = 2156387600. Its totient is φ = 2130720768.

The previous prime is 2143545031. The next prime is 2143545073. The reversal of 2143545043 is 3405453412.

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 2143545043 - 2⁹ = 2143544531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2143544996 and 2143545014.

It is not an unprimeable number, because it can be changed into a prime (2143545023) 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, 283648 + ... + 291106.

It is an arithmetic number, because the mean of its divisors is an integer number (269548450).

Almost surely, 2^2143545043 is an apocalyptic number.

2143545043 is a deficient number, since it is larger than the sum of its proper divisors (12842557).

2143545043 is a wasteful number, since it uses less digits than its factorization.

2143545043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9141.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 2143545043 is about 46298.4345631685. The cubic root of 2143545043 is about 1289.3699310761.

Adding to 2143545043 its reverse (3405453412), we get a palindrome (5548998455).

The spelling of 2143545043 in words is "two billion, one hundred forty-three million, five hundred forty-five thousand, forty-three".