2543521144 has 8 divisors (see below), whose sum is σ = 4769102160. Its totient is φ = 1271760568.

The previous prime is 2543521133. The next prime is 2543521157. The reversal of 2543521144 is 4411253452.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158970064 + ... + 158970079.

It is an arithmetic number, because the mean of its divisors is an integer number (596137770).

Almost surely, 2^2543521144 is an apocalyptic number.

It is an amenable number.

2543521144 is a deficient number, since it is larger than the sum of its proper divisors (2225581016).

2543521144 is a wasteful number, since it uses less digits than its factorization.

2543521144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317940149 (or 317940145 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 2543521144 is about 50433.3336593963. Note that the first 3 decimals coincide. The cubic root of 2543521144 is about 1365.0391816543.

Adding to 2543521144 its reverse (4411253452), we get a palindrome (6954774596).

The spelling of 2543521144 in words is "two billion, five hundred forty-three million, five hundred twenty-one thousand, one hundred forty-four".