4045523 has 2 divisors, whose sum is σ = 4045524. Its totient is φ = 4045522.

The previous prime is 4045501. The next prime is 4045549. The reversal of 4045523 is 3255404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4045523 - 2⁸ = 4045267 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 4⁶ + 0 + 4⁶ + 5⁹ + 5⁹ + 2¹⁷ + 3² .

It is not a weakly prime, because it can be changed into another prime (4045583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022761 + 2022762.

It is an arithmetic number, because the mean of its divisors is an integer number (2022762).

Almost surely, 2^4045523 is an apocalyptic number.

4045523 is a deficient number, since it is larger than the sum of its proper divisors (1).

4045523 is an equidigital number, since it uses as much as digits as its factorization.

4045523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 4045523 is about 2011.3485525885. The cubic root of 4045523 is about 159.3400288770.

The spelling of 4045523 in words is "four million, forty-five thousand, five hundred twenty-three".