200003641 has 4 divisors (see below), whose sum is σ = 200032000. Its totient is φ = 199975284.

The previous prime is 200003627. The next prime is 200003647. The reversal of 200003641 is 146300002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 200003641 - 2²⁵ = 166449209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200003647) 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, 5560 + ... + 20758.

It is an arithmetic number, because the mean of its divisors is an integer number (50008000).

Almost surely, 2^200003641 is an apocalyptic number.

It is an amenable number.

200003641 is a deficient number, since it is larger than the sum of its proper divisors (28359).

200003641 is a wasteful number, since it uses less digits than its factorization.

200003641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28358.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 200003641 is about 14142.2643519346. The cubic root of 200003641 is about 584.8070964039.

Adding to 200003641 its reverse (146300002), we get a palindrome (346303643).

The spelling of 200003641 in words is "two hundred million, three thousand, six hundred forty-one".