200045643 has 16 divisors (see below), whose sum is σ = 313071360. Its totient is φ = 111221856.

The previous prime is 200045641. The next prime is 200045669. The reversal of 200045643 is 346540002.

It is not a de Polignac number, because 200045643 - 2¹ = 200045641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200045641) 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, 127953 + ... + 129506.

It is an arithmetic number, because the mean of its divisors is an integer number (19566960).

Almost surely, 2^200045643 is an apocalyptic number.

200045643 is a deficient number, since it is larger than the sum of its proper divisors (113025717).

200045643 is a wasteful number, since it uses less digits than its factorization.

200045643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257506.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 200045643 is about 14143.7492554131. The cubic root of 200045643 is about 584.8480312393.

Adding to 200045643 its reverse (346540002), we get a palindrome (546585645).

The spelling of 200045643 in words is "two hundred million, forty-five thousand, six hundred forty-three".