2544223145 has 8 divisors (see below), whose sum is σ = 3232660104. Its totient is φ = 1915650304.

The previous prime is 2544223141. The next prime is 2544223163. The reversal of 2544223145 is 5413224452.

It can be written as a sum of positive squares in 4 ways, for example, as 1460233369 + 1083989776 = 38213^2 + 32924^2 .

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

It is not a de Polignac number, because 2544223145 - 2² = 2544223141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2544223141) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 14965934 + ... + 14966103.

It is an arithmetic number, because the mean of its divisors is an integer number (404082513).

Almost surely, 2^2544223145 is an apocalyptic number.

It is an amenable number.

2544223145 is a deficient number, since it is larger than the sum of its proper divisors (688436959).

2544223145 is a wasteful number, since it uses less digits than its factorization.

2544223145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29932059.

The product of its digits is 38400, while the sum is 32.

The square root of 2544223145 is about 50440.2928718698. The cubic root of 2544223145 is about 1365.1647517690.

Adding to 2544223145 its reverse (5413224452), we get a palindrome (7957447597).

The spelling of 2544223145 in words is "two billion, five hundred forty-four million, two hundred twenty-three thousand, one hundred forty-five".