200003129 has 4 divisors (see below), whose sum is σ = 201983460. Its totient is φ = 198022800.

The previous prime is 200003123. The next prime is 200003173. The reversal of 200003129 is 921300002.

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 181710400 + 18292729 = 13480^2 + 4277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200003129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200003123) 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, 990014 + ... + 990215.

It is an arithmetic number, because the mean of its divisors is an integer number (50495865).

Almost surely, 2^200003129 is an apocalyptic number.

It is an amenable number.

200003129 is a deficient number, since it is larger than the sum of its proper divisors (1980331).

200003129 is a wasteful number, since it uses less digits than its factorization.

200003129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980330.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 200003129 is about 14142.2462501542. The cubic root of 200003129 is about 584.8065973772.

The spelling of 200003129 in words is "two hundred million, three thousand, one hundred twenty-nine".