200530409 has 2 divisors, whose sum is σ = 200530410. Its totient is φ = 200530408.

The previous prime is 200530403. The next prime is 200530459. The reversal of 200530409 is 904035002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135373225 + 65157184 = 11635^2 + 8072^2 .

It is a cyclic number.

It is not a de Polignac number, because 200530409 - 2²⁰ = 199481833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (200530403) by changing a digit.

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, 100265204 + 100265205.

It is an arithmetic number, because the mean of its divisors is an integer number (100265205).

Almost surely, 2^200530409 is an apocalyptic number.

It is an amenable number.

200530409 is a deficient number, since it is larger than the sum of its proper divisors (1).

200530409 is an equidigital number, since it uses as much as digits as its factorization.

200530409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 200530409 is about 14160.8759969149. The cubic root of 200530409 is about 585.3200664091.

The spelling of 200530409 in words is "two hundred million, five hundred thirty thousand, four hundred nine".