2591271 has 10 divisors (see below), whose sum is σ = 3871032. Its totient is φ = 1727460.

The previous prime is 2591269. The next prime is 2591273. The reversal of 2591271 is 1721952.

2591271 is a `hidden beast` number, since 2 + 591 + 2 + 71 = 666.

2591271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2591269) and next prime (2591273).

It is not a de Polignac number, because 2591271 - 2¹ = 2591269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2591273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15915 + ... + 16076.

2^2591271 is an apocalyptic number.

2591271 is a deficient number, since it is larger than the sum of its proper divisors (1279761).

2591271 is an equidigital number, since it uses as much as digits as its factorization.

2591271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32003 (or 31994 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 2591271 is about 1609.7425259960. The cubic root of 2591271 is about 137.3528298637.

The spelling of 2591271 in words is "two million, five hundred ninety-one thousand, two hundred seventy-one".