109219 has 4 divisors (see below), whose sum is σ = 119160. Its totient is φ = 99280.

The previous prime is 109211. The next prime is 109229. The reversal of 109219 is 912901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109219 - 2³ = 109211 is a prime.

It is a super-2 number, since 2×109219² = 23857579922, which contains 22 as substring.

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 109219.

It is not an unprimeable number, because it can be changed into a prime (109211) 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, 4954 + ... + 4975.

It is an arithmetic number, because the mean of its divisors is an integer number (29790).

2¹⁰⁹²¹⁹ is an apocalyptic number.

109219 is a deficient number, since it is larger than the sum of its proper divisors (9941).

109219 is an equidigital number, since it uses as much as digits as its factorization.

109219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9940.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 109219 is about 330.4829798946. The cubic root of 109219 is about 47.8005321976.

It can be divided in two parts, 10921 and 9, that multiplied together give a palindrome (98289).

The spelling of 109219 in words is "one hundred nine thousand, two hundred nineteen".