112521444 has 72 divisors (see below), whose sum is σ = 315318528. Its totient is φ = 31106880.

The previous prime is 112521389. The next prime is 112521467. The reversal of 112521444 is 444125211.

It is a super-2 number, since 2×112521444² = 25322150719690272, which contains 22 as substring.

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, 15142 + ... + 21314.

It is an arithmetic number, because the mean of its divisors is an integer number (4379424).

Almost surely, 2^112521444 is an apocalyptic number.

112521444 is a gapful number since it is divisible by the number (14) 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 112521444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157659264).

112521444 is an abundant number, since it is smaller than the sum of its proper divisors (202797084).

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

112521444 is a wasteful number, since it uses less digits than its factorization.

112521444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6225 (or 6216 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 112521444 is about 10607.6125494854. The cubic root of 112521444 is about 482.7753628791.

Adding to 112521444 its reverse (444125211), we get a palindrome (556646655).

The spelling of 112521444 in words is "one hundred twelve million, five hundred twenty-one thousand, four hundred forty-four".