109382721 has 8 divisors (see below), whose sum is σ = 166678464. Its totient is φ = 62504400.

The previous prime is 109382717. The next prime is 109382723. The reversal of 109382721 is 127283901.

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

It is not a de Polignac number, because 109382721 - 2² = 109382717 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (109382723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2604330 + ... + 2604371.

It is an arithmetic number, because the mean of its divisors is an integer number (20834808).

Almost surely, 2^109382721 is an apocalyptic number.

It is an amenable number.

109382721 is a deficient number, since it is larger than the sum of its proper divisors (57295743).

109382721 is an equidigital number, since it uses as much as digits as its factorization.

109382721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5208711.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 109382721 is about 10458.6194595654. The cubic root of 109382721 is about 478.2440485648.

The spelling of 109382721 in words is "one hundred nine million, three hundred eighty-two thousand, seven hundred twenty-one".