2143544315 has 32 divisors (see below), whose sum is σ = 2875461120. Its totient is φ = 1520870400.

The previous prime is 2143544287. The next prime is 2143544339. The reversal of 2143544315 is 5134453412.

It is not a de Polignac number, because 2143544315 - 2¹⁰ = 2143543291 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375956 + ... + 381614.

It is an arithmetic number, because the mean of its divisors is an integer number (89858160).

Almost surely, 2^2143544315 is an apocalyptic number.

2143544315 is a deficient number, since it is larger than the sum of its proper divisors (731916805).

2143544315 is a wasteful number, since it uses less digits than its factorization.

2143544315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5843.

The product of its digits is 28800, while the sum is 32.

The square root of 2143544315 is about 46298.4267011310. The cubic root of 2143544315 is about 1289.3697851089.

Adding to 2143544315 its reverse (5134453412), we get a palindrome (7277997727).

The spelling of 2143544315 in words is "two billion, one hundred forty-three million, five hundred forty-four thousand, three hundred fifteen".