16290229 has 2 divisors, whose sum is σ = 16290230. Its totient is φ = 16290228.

The previous prime is 16290227. The next prime is 16290269. The reversal of 16290229 is 92209261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8439025 + 7851204 = 2905^2 + 2802^2 .

It is a cyclic number.

It is not a de Polignac number, because 16290229 - 2¹ = 16290227 is a prime.

Together with 16290227, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16290229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16290227) 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, 8145114 + 8145115.

It is an arithmetic number, because the mean of its divisors is an integer number (8145115).

Almost surely, 2^16290229 is an apocalyptic number.

It is an amenable number.

16290229 is a deficient number, since it is larger than the sum of its proper divisors (1).

16290229 is an equidigital number, since it uses as much as digits as its factorization.

16290229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 16290229 is about 4036.1155830823. The cubic root of 16290229 is about 253.4986960914.

The spelling of 16290229 in words is "sixteen million, two hundred ninety thousand, two hundred twenty-nine".