200542135 has 4 divisors (see below), whose sum is σ = 240650568. Its totient is φ = 160433704.

The previous prime is 200542099. The next prime is 200542141. The reversal of 200542135 is 531245002.

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

It is a cyclic number.

It is not a de Polignac number, because 200542135 - 2²⁵ = 166987703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20054209 + ... + 20054218.

It is an arithmetic number, because the mean of its divisors is an integer number (60162642).

Almost surely, 2^200542135 is an apocalyptic number.

200542135 is a deficient number, since it is larger than the sum of its proper divisors (40108433).

200542135 is an equidigital number, since it uses as much as digits as its factorization.

200542135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40108432.

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

The square root of 200542135 is about 14161.2900189213. The cubic root of 200542135 is about 585.3314750352.

Adding to 200542135 its reverse (531245002), we get a palindrome (731787137).

The spelling of 200542135 in words is "two hundred million, five hundred forty-two thousand, one hundred thirty-five".