43140471 has 16 divisors (see below), whose sum is σ = 62875008. Its totient is φ = 26093600.

The previous prime is 43140467. The next prime is 43140473. The reversal of 43140471 is 17404134.

43140471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 43140471 - 2² = 43140467 is a prime.

It is a super-3 number, since 3×43140471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140473) 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 15 ways as a sum of consecutive naturals, for example, 21376 + ... + 23306.

It is an arithmetic number, because the mean of its divisors is an integer number (3929688).

Almost surely, 2^43140471 is an apocalyptic number.

43140471 is a deficient number, since it is larger than the sum of its proper divisors (19734537).

43140471 is a wasteful number, since it uses less digits than its factorization.

43140471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 43140471 is about 6568.1406044633. The cubic root of 43140471 is about 350.7208842654.

The spelling of 43140471 in words is "forty-three million, one hundred forty thousand, four hundred seventy-one".