109723219 has 4 divisors (see below), whose sum is σ = 116177544. Its totient is φ = 103268896.

The previous prime is 109723213. The next prime is 109723223. The reversal of 109723219 is 912327901.

It is a happy number.

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 109723219 - 2¹⁹ = 109198931 is a prime.

It is a super-2 number, since 2×109723219² = 24078369575443922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109723213) 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, 3227137 + ... + 3227170.

It is an arithmetic number, because the mean of its divisors is an integer number (29044386).

Almost surely, 2^109723219 is an apocalyptic number.

109723219 is a deficient number, since it is larger than the sum of its proper divisors (6454325).

109723219 is an equidigital number, since it uses as much as digits as its factorization.

109723219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6454324.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 109723219 is about 10474.8851545017. The cubic root of 109723219 is about 478.7397772701.

The spelling of 109723219 in words is "one hundred nine million, seven hundred twenty-three thousand, two hundred nineteen".