18035573 has 2 divisors, whose sum is σ = 18035574. Its totient is φ = 18035572.

The previous prime is 18035561. The next prime is 18035587. The reversal of 18035573 is 37553081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16337764 + 1697809 = 4042^2 + 1303^2 .

It is a cyclic number.

It is not a de Polignac number, because 18035573 - 2⁶ = 18035509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18035513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9017786 + 9017787.

It is an arithmetic number, because the mean of its divisors is an integer number (9017787).

Almost surely, 2^18035573 is an apocalyptic number.

It is an amenable number.

18035573 is a deficient number, since it is larger than the sum of its proper divisors (1).

18035573 is an equidigital number, since it uses as much as digits as its factorization.

18035573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 18035573 is about 4246.8309361217. The cubic root of 18035573 is about 262.2466695809.

It can be divided in two parts, 180 and 35573, that added together give a palindrome (35753).

The spelling of 18035573 in words is "eighteen million, thirty-five thousand, five hundred seventy-three".