2281725 has 18 divisors (see below), whose sum is σ = 4087226. Its totient is φ = 1216800.

The previous prime is 2281717. The next prime is 2281739. The reversal of 2281725 is 5271822.

It can be written as a sum of positive squares in 3 ways, for example, as 13689 + 2268036 = 117^2 + 1506^2 .

It is not a de Polignac number, because 2281725 - 2³ = 2281717 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁶ + 8² + 1 + 7³ + 2¹⁸ + 5⁹ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4846 + ... + 5295.

2^2281725 is an apocalyptic number.

2281725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2281725 is a deficient number, since it is larger than the sum of its proper divisors (1805501).

2281725 is a wasteful number, since it uses less digits than its factorization.

2281725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10157 (or 10149 counting only the distinct ones).

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

The square root of 2281725 is about 1510.5379836336. The cubic root of 2281725 is about 131.6500717927.

It can be divided in two parts, 228 and 1725, that added together give a triangular number (1953 = T₆₂).

The spelling of 2281725 in words is "two million, two hundred eighty-one thousand, seven hundred twenty-five".