200668541 has 4 divisors (see below), whose sum is σ = 200697084. Its totient is φ = 200640000.

The previous prime is 200668529. The next prime is 200668571. The reversal of 200668541 is 145866002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 172003225 + 28665316 = 13115^2 + 5354^2 .

It is a cyclic number.

It is not a de Polignac number, because 200668541 - 2⁶ = 200668477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200668498 and 200668507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200668571) 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, 4541 + ... + 20541.

It is an arithmetic number, because the mean of its divisors is an integer number (50174271).

Almost surely, 2^200668541 is an apocalyptic number.

It is an amenable number.

200668541 is a deficient number, since it is larger than the sum of its proper divisors (28543).

200668541 is a wasteful number, since it uses less digits than its factorization.

200668541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28542.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 200668541 is about 14165.7523979491. The cubic root of 200668541 is about 585.4544315237.

The spelling of 200668541 in words is "two hundred million, six hundred sixty-eight thousand, five hundred forty-one".