2140545543 has 8 divisors (see below), whose sum is σ = 2854281456. Its totient is φ = 1426920000.

The previous prime is 2140545541. The next prime is 2140545551. The reversal of 2140545543 is 3455450412.

2140545543 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2140545543 - 2¹ = 2140545541 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140545541) 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, 44793 + ... + 79293.

It is an arithmetic number, because the mean of its divisors is an integer number (356785182).

Almost surely, 2^2140545543 is an apocalyptic number.

2140545543 is a deficient number, since it is larger than the sum of its proper divisors (713735913).

2140545543 is a wasteful number, since it uses less digits than its factorization.

2140545543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55185.

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 2140545543 is about 46266.0301193003. The cubic root of 2140545543 is about 1288.7682377174.

Adding to 2140545543 its reverse (3455450412), we get a palindrome (5595995955).

The spelling of 2140545543 in words is "two billion, one hundred forty million, five hundred forty-five thousand, five hundred forty-three".