18282533 has 2 divisors, whose sum is σ = 18282534. Its totient is φ = 18282532.

The previous prime is 18282527. The next prime is 18282547. The reversal of 18282533 is 33528281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10543009 + 7739524 = 3247^2 + 2782^2 .

It is a cyclic number.

It is not a de Polignac number, because 18282533 - 2¹⁸ = 18020389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18282533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18282553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9141266 + 9141267.

It is an arithmetic number, because the mean of its divisors is an integer number (9141267).

Almost surely, 2^18282533 is an apocalyptic number.

It is an amenable number.

18282533 is a deficient number, since it is larger than the sum of its proper divisors (1).

18282533 is an equidigital number, since it uses as much as digits as its factorization.

18282533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 18282533 is about 4275.8078768813. The cubic root of 18282533 is about 263.4382232723.

The spelling of 18282533 in words is "eighteen million, two hundred eighty-two thousand, five hundred thirty-three".