2143318916 has 12 divisors (see below), whose sum is σ = 3758843088. Its totient is φ = 1069363752.

The previous prime is 2143318907. The next prime is 2143318927. The reversal of 2143318916 is 6198133412.

It is a self number, because there is not a number n which added to its sum of digits gives 2143318916.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571826 + ... + 575561.

It is an arithmetic number, because the mean of its divisors is an integer number (313236924).

Almost surely, 2^2143318916 is an apocalyptic number.

It is an amenable number.

2143318916 is a deficient number, since it is larger than the sum of its proper divisors (1615524172).

2143318916 is a wasteful number, since it uses less digits than its factorization.

2143318916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147858 (or 1147856 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 2143318916 is about 46295.9924399510. The cubic root of 2143318916 is about 1289.3245900481.

The spelling of 2143318916 in words is "two billion, one hundred forty-three million, three hundred eighteen thousand, nine hundred sixteen".