2045646203 has 4 divisors (see below), whose sum is σ = 2048114640. Its totient is φ = 2043177768.

The previous prime is 2045646199. The next prime is 2045646257. The reversal of 2045646203 is 3026465402.

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

It is a cyclic number.

It is not a de Polignac number, because 2045646203 - 2² = 2045646199 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 2045646203.

It is not an unprimeable number, because it can be changed into a prime (2045646263) 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, 1232975 + ... + 1234632.

It is an arithmetic number, because the mean of its divisors is an integer number (512028660).

Almost surely, 2^2045646203 is an apocalyptic number.

2045646203 is a deficient number, since it is larger than the sum of its proper divisors (2468437).

2045646203 is an equidigital number, since it uses as much as digits as its factorization.

2045646203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468436.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 2045646203 is about 45228.8204909215. The cubic root of 2045646203 is about 1269.4341420707.

The spelling of 2045646203 in words is "two billion, forty-five million, six hundred forty-six thousand, two hundred three".