2225871 has 12 divisors (see below), whose sum is σ = 3355248. Its totient is φ = 1419264.

The previous prime is 2225863. The next prime is 2225879. The reversal of 2225871 is 1785222.

It is an interprime number because it is at equal distance from previous prime (2225863) and next prime (2225879).

It is not a de Polignac number, because 2225871 - 2³ = 2225863 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁷ + 2¹⁷ + 5⁹ + 8 + 7⁴ + 1 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5170 + ... + 5583.

It is an arithmetic number, because the mean of its divisors is an integer number (279604).

2^2225871 is an apocalyptic number.

2225871 is a deficient number, since it is larger than the sum of its proper divisors (1129377).

2225871 is a wasteful number, since it uses less digits than its factorization.

2225871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10782 (or 10779 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 2225871 is about 1491.9353203139. The cubic root of 2225871 is about 130.5669713942.

The spelling of 2225871 in words is "two million, two hundred twenty-five thousand, eight hundred seventy-one".