18053237 has 2 divisors, whose sum is σ = 18053238. Its totient is φ = 18053236.

The previous prime is 18053227. The next prime is 18053251. The reversal of 18053237 is 73235081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12859396 + 5193841 = 3586^2 + 2279^2 .

It is a cyclic number.

It is not a de Polignac number, because 18053237 - 2¹⁰ = 18052213 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18053227) 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, 9026618 + 9026619.

It is an arithmetic number, because the mean of its divisors is an integer number (9026619).

Almost surely, 2^18053237 is an apocalyptic number.

It is an amenable number.

18053237 is a deficient number, since it is larger than the sum of its proper divisors (1).

18053237 is an equidigital number, since it uses as much as digits as its factorization.

18053237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 18053237 is about 4248.9100955421. The cubic root of 18053237 is about 262.3322562471.

The spelling of 18053237 in words is "eighteen million, fifty-three thousand, two hundred thirty-seven".