2285813 has 2 divisors, whose sum is σ = 2285814. Its totient is φ = 2285812.

The previous prime is 2285797. The next prime is 2285821. The reversal of 2285813 is 3185822.

2285813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2053489 + 232324 = 1433^2 + 482^2 .

It is a cyclic number.

It is not a de Polignac number, because 2285813 - 2⁴ = 2285797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2285863) 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 as a sum of consecutive naturals, namely, 1142906 + 1142907.

It is an arithmetic number, because the mean of its divisors is an integer number (1142907).

2^2285813 is an apocalyptic number.

It is an amenable number.

2285813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2285813 is an equidigital number, since it uses as much as digits as its factorization.

2285813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 29.

The square root of 2285813 is about 1511.8905383658. The cubic root of 2285813 is about 131.7286474907.

Subtracting 2285813 from its reverse (3185822), we obtain a palindrome (900009).

The spelling of 2285813 in words is "two million, two hundred eighty-five thousand, eight hundred thirteen".