2126646203 has 16 divisors (see below), whose sum is σ = 2350432512. Its totient is φ = 1908060000.

The previous prime is 2126646199. The next prime is 2126646239. The reversal of 2126646203 is 3026466212.

It is not a de Polignac number, because 2126646203 - 2² = 2126646199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2126646203.

It is not an unprimeable number, because it can be changed into a prime (2126646103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364850 + ... + 370632.

It is an arithmetic number, because the mean of its divisors is an integer number (146902032).

Almost surely, 2^2126646203 is an apocalyptic number.

2126646203 is a deficient number, since it is larger than the sum of its proper divisors (223786309).

2126646203 is a wasteful number, since it uses less digits than its factorization.

2126646203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6226.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 2126646203 is about 46115.5744082192. The cubic root of 2126646203 is about 1285.9726979878.

Subtracting 2126646203 from its reverse (3026466212), we obtain a square (899820009 = 29997²).

The spelling of 2126646203 in words is "two billion, one hundred twenty-six million, six hundred forty-six thousand, two hundred three".