2043523 has 2 divisors, whose sum is σ = 2043524. Its totient is φ = 2043522.

The previous prime is 2043511. The next prime is 2043539. The reversal of 2043523 is 3253402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2043523 - 2⁵ = 2043491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2043523.

It is not a weakly prime, because it can be changed into another prime (2043023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021761 + 1021762.

It is an arithmetic number, because the mean of its divisors is an integer number (1021762).

2^2043523 is an apocalyptic number.

2043523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043523 is an equidigital number, since it uses as much as digits as its factorization.

2043523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 2043523 is about 1429.5184503881. The cubic root of 2043523 is about 126.8994802593.

Adding to 2043523 its reverse (3253402), we get a palindrome (5296925).

The spelling of 2043523 in words is "two million, forty-three thousand, five hundred twenty-three".