108219205 has 4 divisors (see below), whose sum is σ = 129863052. Its totient is φ = 86575360.

The previous prime is 108219197. The next prime is 108219253. The reversal of 108219205 is 502912801.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21095649 + 87123556 = 4593^2 + 9334^2 .

It is not a de Polignac number, because 108219205 - 2³ = 108219197 is a prime.

It is a super-2 number, since 2×108219205² = 23422792661664050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10821916 + ... + 10821925.

It is an arithmetic number, because the mean of its divisors is an integer number (32465763).

Almost surely, 2^108219205 is an apocalyptic number.

It is an amenable number.

108219205 is a deficient number, since it is larger than the sum of its proper divisors (21643847).

108219205 is an equidigital number, since it uses as much as digits as its factorization.

108219205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21643846.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 108219205 is about 10402.8460048200. The cubic root of 108219205 is about 476.5422888248.

The spelling of 108219205 in words is "one hundred eight million, two hundred nineteen thousand, two hundred five".