200531306 has 4 divisors (see below), whose sum is σ = 300796962. Its totient is φ = 100265652.

The previous prime is 200531299. The next prime is 200531321. The reversal of 200531306 is 603135002.

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

It can be written as a sum of positive squares in only one way, i.e., 200364025 + 167281 = 14155^2 + 409^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50132825 + ... + 50132828.

Almost surely, 2^200531306 is an apocalyptic number.

200531306 is a deficient number, since it is larger than the sum of its proper divisors (100265656).

200531306 is a wasteful number, since it uses less digits than its factorization.

200531306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100265655.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 200531306 is about 14160.9076686489. The cubic root of 200531306 is about 585.3209391468.

Adding to 200531306 its reverse (603135002), we get a palindrome (803666308).

The spelling of 200531306 in words is "two hundred million, five hundred thirty-one thousand, three hundred six".