16243229 has 2 divisors, whose sum is σ = 16243230. Its totient is φ = 16243228.

The previous prime is 16243223. The next prime is 16243273. The reversal of 16243229 is 92234261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12996025 + 3247204 = 3605^2 + 1802^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16243229 is a prime.

It is a Chen prime.

It is equal to p_1045757 and since 16243229 and 1045757 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16243223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8121614 + 8121615.

It is an arithmetic number, because the mean of its divisors is an integer number (8121615).

Almost surely, 2^16243229 is an apocalyptic number.

It is an amenable number.

16243229 is a deficient number, since it is larger than the sum of its proper divisors (1).

16243229 is an equidigital number, since it uses as much as digits as its factorization.

16243229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 16243229 is about 4030.2889474577. The cubic root of 16243229 is about 253.2546660558.

The spelling of 16243229 in words is "sixteen million, two hundred forty-three thousand, two hundred twenty-nine".