2108219 has 4 divisors (see below), whose sum is σ = 2117280. Its totient is φ = 2099160.
The previous prime is 2108177. The next prime is 2108231. The reversal of 2108219 is 9128012.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2108219 is a prime.
It is a super-2 number, since 2×21082192 = 8889174703922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2108194 and 2108203.
It is not an unprimeable number, because it can be changed into a prime (2108299) 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, 4172 + ... + 4649.
It is an arithmetic number, because the mean of its divisors is an integer number (529320).
22108219 is an apocalyptic number.
2108219 is a deficient number, since it is larger than the sum of its proper divisors (9061).
2108219 is an equidigital number, since it uses as much as digits as its factorization.
2108219 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9060.
The product of its (nonzero) digits is 288, while the sum is 23.
The square root of 2108219 is about 1451.9707297325. The cubic root of 2108219 is about 128.2247637826.
The spelling of 2108219 in words is "two million, one hundred eight thousand, two hundred nineteen".
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