219530 has 16 divisors (see below), whose sum is σ = 409320. Its totient is φ = 84672.

The previous prime is 219529. The next prime is 219533. The reversal of 219530 is 35912.

219530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 187489 + 32041 = 433^2 + 179^2 .

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (219533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89 + ... + 668.

2²¹⁹⁵³⁰ is an apocalyptic number.

219530 is a deficient number, since it is larger than the sum of its proper divisors (189790).

219530 is a wasteful number, since it uses less digits than its factorization.

219530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 219530 is about 468.5402864216. The cubic root of 219530 is about 60.3250873081.

It can be divided in two parts, 2 and 19530, that multiplied together give a triangular number (39060 = T₂₇₉).

The spelling of 219530 in words is "two hundred nineteen thousand, five hundred thirty".