2154204543 has 8 divisors (see below), whose sum is σ = 2879852800. Its totient is φ = 1432346328.

The previous prime is 2154204527. The next prime is 2154204551. The reversal of 2154204543 is 3454024512.

2154204543 is digitally balanced in base 2 and base 4, because in such bases 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 2154204543 - 2⁴ = 2154204527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2154204543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154204443) 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, 946183 + ... + 948456.

It is an arithmetic number, because the mean of its divisors is an integer number (359981600).

Almost surely, 2^2154204543 is an apocalyptic number.

2154204543 is a deficient number, since it is larger than the sum of its proper divisors (725648257).

2154204543 is a wasteful number, since it uses less digits than its factorization.

2154204543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895021.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2154204543 is about 46413.4090861682. The cubic root of 2154204543 is about 1291.5036735369.

The spelling of 2154204543 in words is "two billion, one hundred fifty-four million, two hundred four thousand, five hundred forty-three".