109445072 has 80 divisors (see below), whose sum is σ = 245609280. Its totient is φ = 46771200.

The previous prime is 109445069. The next prime is 109445081. The reversal of 109445072 is 270544901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209003 + ... + 209525.

It is an arithmetic number, because the mean of its divisors is an integer number (3070116).

Almost surely, 2^109445072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109445072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122804640).

109445072 is an abundant number, since it is smaller than the sum of its proper divisors (136164208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109445072 is a wasteful number, since it uses less digits than its factorization.

109445072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 109445072 is about 10461.5998776478. The cubic root of 109445072 is about 478.3349018255.

Adding to 109445072 its reverse (270544901), we get a palindrome (379989973).

The spelling of 109445072 in words is "one hundred nine million, four hundred forty-five thousand, seventy-two".