2283521 has 4 divisors (see below), whose sum is σ = 2287572. Its totient is φ = 2279472.

The previous prime is 2283511. The next prime is 2283539. The reversal of 2283521 is 1253822.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2265025 + 18496 = 1505^2 + 136^2 .

It is a cyclic number.

It is not a de Polignac number, because 2283521 - 2¹⁸ = 2021377 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 2¹³ + 8³ + 3¹¹ + 5 + 2²¹ + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2283511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010 + ... + 2363.

It is an arithmetic number, because the mean of its divisors is an integer number (571893).

It is a Proth number, since it is equal to 1115 ⋅ 2¹¹ + 1 and 1115 < 2¹¹.

2^2283521 is an apocalyptic number.

It is an amenable number.

2283521 is a deficient number, since it is larger than the sum of its proper divisors (4051).

2283521 is an equidigital number, since it uses as much as digits as its factorization.

2283521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050.

The product of its digits is 960, while the sum is 23.

The square root of 2283521 is about 1511.1323568768. The cubic root of 2283521 is about 131.6846043677.

The spelling of 2283521 in words is "two million, two hundred eighty-three thousand, five hundred twenty-one".