219361 has 2 divisors, whose sum is σ = 219362. Its totient is φ = 219360.

The previous prime is 219353. The next prime is 219371. The reversal of 219361 is 163912.

219361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216225 + 3136 = 465^2 + 56^2 .

It is a cyclic number.

It is not a de Polignac number, because 219361 - 2³ = 219353 is a prime.

It is a Chen prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (219301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109680 + 109681.

It is an arithmetic number, because the mean of its divisors is an integer number (109681).

2²¹⁹³⁶¹ is an apocalyptic number.

It is an amenable number.

219361 is a deficient number, since it is larger than the sum of its proper divisors (1).

219361 is an equidigital number, since it uses as much as digits as its factorization.

219361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 22.

The square root of 219361 is about 468.3599043471. The cubic root of 219361 is about 60.3096033849.

The spelling of 219361 in words is "two hundred nineteen thousand, three hundred sixty-one".