16243433 has 2 divisors, whose sum is σ = 16243434. Its totient is φ = 16243432.

The previous prime is 16243391. The next prime is 16243441. The reversal of 16243433 is 33434261.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13191424 + 3052009 = 3632^2 + 1747^2 .

It is a cyclic number.

It is not a de Polignac number, because 16243433 - 2²⁰ = 15194857 is a prime.

It is not a weakly prime, because it can be changed into another prime (16243453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8121716 + 8121717.

It is an arithmetic number, because the mean of its divisors is an integer number (8121717).

Almost surely, 2^16243433 is an apocalyptic number.

It is an amenable number.

16243433 is a deficient number, since it is larger than the sum of its proper divisors (1).

16243433 is an equidigital number, since it uses as much as digits as its factorization.

16243433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 26.

The square root of 16243433 is about 4030.3142557374. The cubic root of 16243433 is about 253.2557262665.

Adding to 16243433 its reverse (33434261), we get a palindrome (49677694).

The spelling of 16243433 in words is "sixteen million, two hundred forty-three thousand, four hundred thirty-three".