109445782 has 4 divisors (see below), whose sum is σ = 164168676. Its totient is φ = 54722890.

The previous prime is 109445759. The next prime is 109445783. The reversal of 109445782 is 287544901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 287544901 = 7 ⋅41077843.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109445783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27361444 + ... + 27361447.

It is an arithmetic number, because the mean of its divisors is an integer number (41042169).

Almost surely, 2^109445782 is an apocalyptic number.

109445782 is a deficient number, since it is larger than the sum of its proper divisors (54722894).

109445782 is an equidigital number, since it uses as much as digits as its factorization.

109445782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54722893.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 109445782 is about 10461.6338112171. The cubic root of 109445782 is about 478.3359361862.

The spelling of 109445782 in words is "one hundred nine million, four hundred forty-five thousand, seven hundred eighty-two".