2143041515 has 4 divisors (see below), whose sum is σ = 2571649824. Its totient is φ = 1714433208.

The previous prime is 2143041503. The next prime is 2143041541. The reversal of 2143041515 is 5151403412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2143041515 - 2¹⁶ = 2142975979 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 214304147 + ... + 214304156.

It is an arithmetic number, because the mean of its divisors is an integer number (642912456).

Almost surely, 2^2143041515 is an apocalyptic number.

2143041515 is a deficient number, since it is larger than the sum of its proper divisors (428608309).

2143041515 is an equidigital number, since it uses as much as digits as its factorization.

2143041515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428608308.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2143041515 is about 46292.9963925430. The cubic root of 2143041515 is about 1289.2689636456.

Adding to 2143041515 its reverse (5151403412), we get a palindrome (7294444927).

The spelling of 2143041515 in words is "two billion, one hundred forty-three million, forty-one thousand, five hundred fifteen".