108221519 has 4 divisors (see below), whose sum is σ = 123681744. Its totient is φ = 92761296.

The previous prime is 108221501. The next prime is 108221539. The reversal of 108221519 is 915122801.

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 108221519 - 2¹² = 108217423 is a prime.

It is a super-2 number, since 2×108221519² = 23423794349334722, 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 = 108221491 and 108221500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108221539) 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, 7730102 + ... + 7730115.

It is an arithmetic number, because the mean of its divisors is an integer number (30920436).

Almost surely, 2^108221519 is an apocalyptic number.

108221519 is a deficient number, since it is larger than the sum of its proper divisors (15460225).

108221519 is an equidigital number, since it uses as much as digits as its factorization.

108221519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15460224.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 108221519 is about 10402.9572237898. The cubic root of 108221519 is about 476.5456853600.

The spelling of 108221519 in words is "one hundred eight million, two hundred twenty-one thousand, five hundred nineteen".