109545444 has 72 divisors (see below), whose sum is σ = 288916992. Its totient is φ = 34957440.

The previous prime is 109545437. The next prime is 109545451. The reversal of 109545444 is 444545901.

109545444 is a `hidden beast` number, since 109 + 5 + 4 + 544 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (109545437) and next prime (109545451).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 109545399 and 109545408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114472 + ... + 115424.

It is an arithmetic number, because the mean of its divisors is an integer number (4012736).

Almost surely, 2^109545444 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 109545444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144458496).

109545444 is an abundant number, since it is smaller than the sum of its proper divisors (179371548).

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

109545444 is a wasteful number, since it uses less digits than its factorization.

109545444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 109545444 is about 10466.3959412971. The cubic root of 109545444 is about 478.4810840162.

The spelling of 109545444 in words is "one hundred nine million, five hundred forty-five thousand, four hundred forty-four".