109445719 has 8 divisors (see below), whose sum is σ = 116830080. Its totient is φ = 102223800.

The previous prime is 109445683. The next prime is 109445723. The reversal of 109445719 is 917544901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109445719 - 2⁷ = 109445591 is a prime.

It is a super-2 number, since 2×109445719² = 23956730814853922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109445759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39217 + ... + 41914.

It is an arithmetic number, because the mean of its divisors is an integer number (14603760).

Almost surely, 2^109445719 is an apocalyptic number.

109445719 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

109445719 is a deficient number, since it is larger than the sum of its proper divisors (7384361).

109445719 is an equidigital number, since it uses as much as digits as its factorization.

109445719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81221.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 109445719 is about 10461.6308002147. The cubic root of 109445719 is about 478.3358444051.

The spelling of 109445719 in words is "one hundred nine million, four hundred forty-five thousand, seven hundred nineteen".