43013140 has 12 divisors (see below), whose sum is σ = 90327636. Its totient is φ = 17205248.

The previous prime is 43013137. The next prime is 43013143. The reversal of 43013140 is 4131034.

It is an interprime number because it is at equal distance from previous prime (43013137) and next prime (43013143).

It can be written as a sum of positive squares in 2 ways, for example, as 15007876 + 28005264 = 3874^2 + 5292^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43013143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075309 + ... + 1075348.

It is an arithmetic number, because the mean of its divisors is an integer number (7527303).

Almost surely, 2^43013140 is an apocalyptic number.

It is an amenable number.

43013140 is an abundant number, since it is smaller than the sum of its proper divisors (47314496).

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

43013140 is a wasteful number, since it uses less digits than its factorization.

43013140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150666 (or 2150664 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 43013140 is about 6558.4403633791. The cubic root of 43013140 is about 350.3754881799.

Adding to 43013140 its reverse (4131034), we get a palindrome (47144174).

The spelling of 43013140 in words is "forty-three million, thirteen thousand, one hundred forty".