2143102208 has 36 divisors (see below), whose sum is σ = 4606904148. Its totient is φ = 989122560.

The previous prime is 2143102201. The next prime is 2143102219. The reversal of 2143102208 is 8022013412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 566059264 + 1577042944 = 23792^2 + 39712^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143102201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318653 + ... + 325308.

Almost surely, 2^2143102208 is an apocalyptic number.

It is an amenable number.

2143102208 is an abundant number, since it is smaller than the sum of its proper divisors (2463801940).

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

2143102208 is an equidigital number, since it uses as much as digits as its factorization.

2143102208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643990 (or 643976 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2143102208 is about 46293.6519190267. The cubic root of 2143102208 is about 1289.2811346437.

The spelling of 2143102208 in words is "two billion, one hundred forty-three million, one hundred two thousand, two hundred eight".