2256171 has 8 divisors (see below), whose sum is σ = 3112080. Its totient is φ = 1452192.

The previous prime is 2256169. The next prime is 2256173. The reversal of 2256171 is 1716522.

2256171 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 (2256169) and next prime (2256173).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2256171 - 2¹ = 2256169 is a prime.

2256171 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2256173) 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 7 ways as a sum of consecutive naturals, for example, 12880 + ... + 13053.

It is an arithmetic number, because the mean of its divisors is an integer number (389010).

2^2256171 is an apocalyptic number.

2256171 is a deficient number, since it is larger than the sum of its proper divisors (855909).

2256171 is a wasteful number, since it uses less digits than its factorization.

2256171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25965.

The product of its digits is 840, while the sum is 24.

The square root of 2256171 is about 1502.0555915145. The cubic root of 2256171 is about 131.1567573570.

The spelling of 2256171 in words is "two million, two hundred fifty-six thousand, one hundred seventy-one".