43271057 has 4 divisors (see below), whose sum is σ = 43342260. Its totient is φ = 43199856.

The previous prime is 43271051. The next prime is 43271077. The reversal of 43271057 is 75017234.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3530641 + 39740416 = 1879^2 + 6304^2 .

It is a cyclic number.

It is not a de Polignac number, because 43271057 - 2⁶ = 43270993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43271051) 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, 34682 + ... + 35907.

It is an arithmetic number, because the mean of its divisors is an integer number (10835565).

Almost surely, 2^43271057 is an apocalyptic number.

It is an amenable number.

43271057 is a deficient number, since it is larger than the sum of its proper divisors (71203).

43271057 is an equidigital number, since it uses as much as digits as its factorization.

43271057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71202.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 43271057 is about 6578.0739582343. The cubic root of 43271057 is about 351.0744046183.

The spelling of 43271057 in words is "forty-three million, two hundred seventy-one thousand, fifty-seven".