2303533 has 2 divisors, whose sum is σ = 2303534. Its totient is φ = 2303532.

The previous prime is 2303531. The next prime is 2303563. The reversal of 2303533 is 3353032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1387684 + 915849 = 1178^2 + 957^2 .

It is a cyclic number.

It is not a de Polignac number, because 2303533 - 2¹ = 2303531 is a prime.

Together with 2303531, it forms a pair of twin primes.

2303533 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2303533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2303531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151766 + 1151767.

It is an arithmetic number, because the mean of its divisors is an integer number (1151767).

2^2303533 is an apocalyptic number.

It is an amenable number.

2303533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2303533 is an equidigital number, since it uses as much as digits as its factorization.

2303533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 19.

The square root of 2303533 is about 1517.7394374530. The cubic root of 2303533 is about 132.0681657415.

Adding to 2303533 its reverse (3353032), we get a palindrome (5656565).

The spelling of 2303533 in words is "two million, three hundred three thousand, five hundred thirty-three".