111250000 has 80 divisors (see below), whose sum is σ = 272460240. Its totient is φ = 44000000.

The previous prime is 111249973. The next prime is 111250033. The reversal of 111250000 is 52111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 69155856 + 42094144 = 8316^2 + 6488^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 1249956 + ... + 1250044.

It is an arithmetic number, because the mean of its divisors is an integer number (3405753).

Almost surely, 2^111250000 is an apocalyptic number.

111250000 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 111250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136230120).

111250000 is an abundant number, since it is smaller than the sum of its proper divisors (161210240).

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

111250000 is an frugal number, since it uses more digits than its factorization.

111250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 111250000 is about 10547.5115548645. The cubic root of 111250000 is about 480.9500858039.

The spelling of 111250000 in words is "one hundred eleven million, two hundred fifty thousand".