2143709318 has 8 divisors (see below), whose sum is σ = 3227791248. Its totient is φ = 1067778904.

The previous prime is 2143709317. The next prime is 2143709329. The reversal of 2143709318 is 8139073412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143709317) 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 3 ways as a sum of consecutive naturals, for example, 2037221 + ... + 2038272.

It is an arithmetic number, because the mean of its divisors is an integer number (403473906).

Almost surely, 2^2143709318 is an apocalyptic number.

2143709318 is a deficient number, since it is larger than the sum of its proper divisors (1084081930).

2143709318 is a wasteful number, since it uses less digits than its factorization.

2143709318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075758.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 2143709318 is about 46300.2086172406. The cubic root of 2143709318 is about 1289.4028680769.

The spelling of 2143709318 in words is "two billion, one hundred forty-three million, seven hundred nine thousand, three hundred eighteen".