200143402 has 8 divisors (see below), whose sum is σ = 302969700. Its totient is φ = 99153504.

The previous prime is 200143387. The next prime is 200143421. The reversal of 200143402 is 204341002.

It can be written as a sum of positive squares in 2 ways, for example, as 199063881 + 1079521 = 14109^2 + 1039^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 458827 + ... + 459262.

Almost surely, 2^200143402 is an apocalyptic number.

200143402 is a deficient number, since it is larger than the sum of its proper divisors (102826298).

200143402 is a wasteful number, since it uses less digits than its factorization.

200143402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918200.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 200143402 is about 14147.2047415735. The cubic root of 200143402 is about 584.9432842476.

Adding to 200143402 its reverse (204341002), we get a palindrome (404484404).

The spelling of 200143402 in words is "two hundred million, one hundred forty-three thousand, four hundred two".