2143516236 has 48 divisors (see below), whose sum is σ = 5268950400. Its totient is φ = 676363392.

The previous prime is 2143516231. The next prime is 2143516261. The reversal of 2143516236 is 6326153412.

It is a junction number, because it is equal to n+sod(n) for n = 2143516197 and 2143516206.

It is not an unprimeable number, because it can be changed into a prime (2143516231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363931 + ... + 369773.

It is an arithmetic number, because the mean of its divisors is an integer number (109769800).

Almost surely, 2^2143516236 is an apocalyptic number.

It is an amenable number.

2143516236 is an abundant number, since it is smaller than the sum of its proper divisors (3125434164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143516236 is a wasteful number, since it uses less digits than its factorization.

2143516236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7478 (or 7476 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 2143516236 is about 46298.1234608920. The cubic root of 2143516236 is about 1289.3641551231.

Adding to 2143516236 its reverse (6326153412), we get a palindrome (8469669648).

The spelling of 2143516236 in words is "two billion, one hundred forty-three million, five hundred sixteen thousand, two hundred thirty-six".