16128533 has 2 divisors, whose sum is σ = 16128534. Its totient is φ = 16128532.

The previous prime is 16128527. The next prime is 16128551. The reversal of 16128533 is 33582161.

16128533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11142244 + 4986289 = 3338^2 + 2233^2 .

It is an emirp because it is prime and its reverse (33582161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16128533 - 2⁴ = 16128517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16128496 and 16128505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16124533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8064266 + 8064267.

It is an arithmetic number, because the mean of its divisors is an integer number (8064267).

Almost surely, 2^16128533 is an apocalyptic number.

It is an amenable number.

16128533 is a deficient number, since it is larger than the sum of its proper divisors (1).

16128533 is an equidigital number, since it uses as much as digits as its factorization.

16128533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 16128533 is about 4016.0344869037. The cubic root of 16128533 is about 252.6571671260.

It can be divided in two parts, 16128 and 533, that added together give a palindrome (16661).

The spelling of 16128533 in words is "sixteen million, one hundred twenty-eight thousand, five hundred thirty-three".