111125400 has 96 divisors (see below), whose sum is σ = 348526800. Its totient is φ = 29286400.

The previous prime is 111125363. The next prime is 111125411. The reversal of 111125400 is 4521111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111125400.

It is a congruent number.

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, 52360 + ... + 54440.

Almost surely, 2^111125400 is an apocalyptic number.

111125400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111125400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174263400).

111125400 is an abundant number, since it is smaller than the sum of its proper divisors (237401400).

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

111125400 is a wasteful number, since it uses less digits than its factorization.

111125400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 111125400 is about 10541.6032936172. The cubic root of 111125400 is about 480.7704640297.

Adding to 111125400 its reverse (4521111), we get a palindrome (115646511).

The spelling of 111125400 in words is "one hundred eleven million, one hundred twenty-five thousand, four hundred".