2143001115 has 24 divisors (see below), whose sum is σ = 3752837088. Its totient is φ = 1131148800.

The previous prime is 2143001087. The next prime is 2143001123. The reversal of 2143001115 is 5111003412.

It is not a de Polignac number, because 2143001115 - 2⁵ = 2143001083 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241111 + ... + 249840.

It is an arithmetic number, because the mean of its divisors is an integer number (156368212).

Almost surely, 2^2143001115 is an apocalyptic number.

2143001115 is a deficient number, since it is larger than the sum of its proper divisors (1609835973).

2143001115 is a wasteful number, since it uses less digits than its factorization.

2143001115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491059 (or 491056 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2143001115 is about 46292.5600393843. The cubic root of 2143001115 is about 1289.2608619526.

Adding to 2143001115 its reverse (5111003412), we get a palindrome (7254004527).

The spelling of 2143001115 in words is "two billion, one hundred forty-three million, one thousand, one hundred fifteen".