43113140 has 144 divisors (see below), whose sum is σ = 114624720. Its totient is φ = 13547520.

The previous prime is 43113137. The next prime is 43113149. The reversal of 43113140 is 4131134.

43113140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 550564 + 42562576 = 742^2 + 6524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43113149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1051520 + ... + 1051560.

It is an arithmetic number, because the mean of its divisors is an integer number (796005).

Almost surely, 2^43113140 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 43113140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57312360).

43113140 is an abundant number, since it is smaller than the sum of its proper divisors (71511580).

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

43113140 is a wasteful number, since it uses less digits than its factorization.

43113140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 43113140 is about 6566.0597012211. The cubic root of 43113140 is about 350.6468039626.

Adding to 43113140 its reverse (4131134), we get a palindrome (47244274).

The spelling of 43113140 in words is "forty-three million, one hundred thirteen thousand, one hundred forty".