200188013 has 4 divisors (see below), whose sum is σ = 200379900. Its totient is φ = 199996128.

The previous prime is 200188007. The next prime is 200188033. The reversal of 200188013 is 310881002.

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 106543684 + 93644329 = 10322^2 + 9677^2 .

It is a cyclic number.

It is not a de Polignac number, because 200188013 - 2¹² = 200183917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200188013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200188033) 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, 94370 + ... + 96467.

It is an arithmetic number, because the mean of its divisors is an integer number (50094975).

Almost surely, 2^200188013 is an apocalyptic number.

It is an amenable number.

200188013 is a deficient number, since it is larger than the sum of its proper divisors (191887).

200188013 is a wasteful number, since it uses less digits than its factorization.

200188013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191886.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 200188013 is about 14148.7813256125. The cubic root of 200188013 is about 584.9867413656.

The spelling of 200188013 in words is "two hundred million, one hundred eighty-eight thousand, thirteen".