111345546 has 64 divisors (see below), whose sum is σ = 256265856. Its totient is φ = 31948800.

The previous prime is 111345473. The next prime is 111345569. The reversal of 111345546 is 645543111.

It is a happy number.

It is a super-2 number, since 2×111345546² = 24795661228076232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173386 + ... + 174026.

It is an arithmetic number, because the mean of its divisors is an integer number (4004154).

Almost surely, 2^111345546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111345546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128132928).

111345546 is an abundant number, since it is smaller than the sum of its proper divisors (144920310).

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

111345546 is a wasteful number, since it uses less digits than its factorization.

111345546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807.

The product of its digits is 7200, while the sum is 30.

The square root of 111345546 is about 10552.0398975743. The cubic root of 111345546 is about 481.0877328684.

Adding to 111345546 its reverse (645543111), we get a palindrome (756888657).

The spelling of 111345546 in words is "one hundred eleven million, three hundred forty-five thousand, five hundred forty-six".