2143316806 has 4 divisors (see below), whose sum is σ = 3214975212. Its totient is φ = 1071658402.

The previous prime is 2143316789. The next prime is 2143316827. The reversal of 2143316806 is 6086133412.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 535829200 + ... + 535829203.

It is an arithmetic number, because the mean of its divisors is an integer number (803743803).

Almost surely, 2^2143316806 is an apocalyptic number.

2143316806 is a deficient number, since it is larger than the sum of its proper divisors (1071658406).

2143316806 is a wasteful number, since it uses less digits than its factorization.

2143316806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071658405.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 2143316806 is about 46295.9696517958. The cubic root of 2143316806 is about 1289.3241669541.

The spelling of 2143316806 in words is "two billion, one hundred forty-three million, three hundred sixteen thousand, eight hundred six".