18535043 has 2 divisors, whose sum is σ = 18535044. Its totient is φ = 18535042.

The previous prime is 18535037. The next prime is 18535063. The reversal of 18535043 is 34053581.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18535043 - 2⁸ = 18534787 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 18534997 and 18535015.

It is not a weakly prime, because it can be changed into another prime (18535003) 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, 9267521 + 9267522.

It is an arithmetic number, because the mean of its divisors is an integer number (9267522).

Almost surely, 2^18535043 is an apocalyptic number.

18535043 is a deficient number, since it is larger than the sum of its proper divisors (1).

18535043 is an equidigital number, since it uses as much as digits as its factorization.

18535043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 18535043 is about 4305.2343722497. The cubic root of 18535043 is about 264.6455115377.

The spelling of 18535043 in words is "eighteen million, five hundred thirty-five thousand, forty-three".