111603648 has 112 divisors (see below), whose sum is σ = 323652896. Its totient is φ = 33730560.

The previous prime is 111603643. The next prime is 111603649. The reversal of 111603648 is 846306111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111603643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151890 + ... + 152622.

It is an arithmetic number, because the mean of its divisors is an integer number (2889758).

Almost surely, 2^111603648 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 111603648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161826448).

111603648 is an abundant number, since it is smaller than the sum of its proper divisors (212049248).

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

111603648 is a wasteful number, since it uses less digits than its factorization.

111603648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 111603648 is about 10564.2627759821. The cubic root of 111603648 is about 481.4591708256.

Adding to 111603648 its reverse (846306111), we get a palindrome (957909759).

The spelling of 111603648 in words is "one hundred eleven million, six hundred three thousand, six hundred forty-eight".