113444212 has 72 divisors (see below), whose sum is σ = 249359040. Its totient is φ = 44876160.

The previous prime is 113444209. The next prime is 113444239. The reversal of 113444212 is 212444311.

It is a happy number.

It is a super-4 number, since 4×113444212⁴ (a number of 33 digits) contains 4444 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, 152313 + ... + 153055.

It is an arithmetic number, because the mean of its divisors is an integer number (3463320).

Almost surely, 2^113444212 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 113444212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124679520).

113444212 is an abundant number, since it is smaller than the sum of its proper divisors (135914828).

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

113444212 is a wasteful number, since it uses less digits than its factorization.

113444212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 812 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 113444212 is about 10651.0192939455. The cubic root of 113444212 is about 484.0914894326.

Adding to 113444212 its reverse (212444311), we get a palindrome (325888523).

Subtracting 113444212 from its reverse (212444311), we obtain a palindrome (99000099).

The spelling of 113444212 in words is "one hundred thirteen million, four hundred forty-four thousand, two hundred twelve".