200705641 has 4 divisors (see below), whose sum is σ = 200736900. Its totient is φ = 200674384.

The previous prime is 200705633. The next prime is 200705653. The reversal of 200705641 is 146507002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 148937616 + 51768025 = 12204^2 + 7195^2 .

It is a cyclic number.

It is not a de Polignac number, because 200705641 - 2³ = 200705633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200705671) 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, 2086 + ... + 20143.

It is an arithmetic number, because the mean of its divisors is an integer number (50184225).

Almost surely, 2^200705641 is an apocalyptic number.

It is an amenable number.

200705641 is a deficient number, since it is larger than the sum of its proper divisors (31259).

200705641 is an equidigital number, since it uses as much as digits as its factorization.

200705641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31258.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 200705641 is about 14167.0618337043. The cubic root of 200705641 is about 585.4905092947.

The spelling of 200705641 in words is "two hundred million, seven hundred five thousand, six hundred forty-one".