257271043 has 4 divisors (see below), whose sum is σ = 257827168. Its totient is φ = 256714920.

The previous prime is 257271041. The next prime is 257271061. The reversal of 257271043 is 340172752.

257271043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 257271043 - 2¹ = 257271041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 257270996 and 257271014.

It is not an unprimeable number, because it can be changed into a prime (257271041) 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, 277368 + ... + 278293.

It is an arithmetic number, because the mean of its divisors is an integer number (64456792).

Almost surely, 2^257271043 is an apocalyptic number.

257271043 is a deficient number, since it is larger than the sum of its proper divisors (556125).

257271043 is an equidigital number, since it uses as much as digits as its factorization.

257271043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556124.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 257271043 is about 16039.6709130830. The cubic root of 257271043 is about 636.0095483648.

The spelling of 257271043 in words is "two hundred fifty-seven million, two hundred seventy-one thousand, forty-three".