109645743 has 8 divisors (see below), whose sum is σ = 149594368. Its totient is φ = 71397144.

The previous prime is 109645727. The next prime is 109645747. The reversal of 109645743 is 347546901.

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

It is not a de Polignac number, because 109645743 - 2⁴ = 109645727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109645747) 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, 424855 + ... + 425112.

It is an arithmetic number, because the mean of its divisors is an integer number (18699296).

Almost surely, 2^109645743 is an apocalyptic number.

109645743 is a deficient number, since it is larger than the sum of its proper divisors (39948625).

109645743 is an equidigital number, since it uses as much as digits as its factorization.

109645743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850013.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 109645743 is about 10471.1863224756. The cubic root of 109645743 is about 478.6270707201.

The spelling of 109645743 in words is "one hundred nine million, six hundred forty-five thousand, seven hundred forty-three".