200542513 has 4 divisors (see below), whose sum is σ = 204326388. Its totient is φ = 196758640.

The previous prime is 200542499. The next prime is 200542577. The reversal of 200542513 is 315245002.

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 126720049 + 73822464 = 11257^2 + 8592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200542513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200542613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1891858 + ... + 1891963.

It is an arithmetic number, because the mean of its divisors is an integer number (51081597).

Almost surely, 2^200542513 is an apocalyptic number.

It is an amenable number.

200542513 is a deficient number, since it is larger than the sum of its proper divisors (3783875).

200542513 is an equidigital number, since it uses as much as digits as its factorization.

200542513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3783874.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 200542513 is about 14161.3033651568. The cubic root of 200542513 is about 585.3318427969.

Adding to 200542513 its reverse (315245002), we get a palindrome (515787515).

The spelling of 200542513 in words is "two hundred million, five hundred forty-two thousand, five hundred thirteen".