219097 has 2 divisors, whose sum is σ = 219098. Its totient is φ = 219096.

The previous prime is 219091. The next prime is 219103. The reversal of 219097 is 790912.

It is a balanced prime because it is at equal distance from previous prime (219091) and next prime (219103).

It can be written as a sum of positive squares in only one way, i.e., 168921 + 50176 = 411^2 + 224^2 .

It is a cyclic number.

It is not a de Polignac number, because 219097 - 2⁷ = 218969 is a prime.

219097 is a lucky number.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (219091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109548 + 109549.

It is an arithmetic number, because the mean of its divisors is an integer number (109549).

2²¹⁹⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

219097 is a deficient number, since it is larger than the sum of its proper divisors (1).

219097 is an equidigital number, since it uses as much as digits as its factorization.

219097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 219097 is about 468.0779849555. The cubic root of 219097 is about 60.2853995583.

The spelling of 219097 in words is "two hundred nineteen thousand, ninety-seven".