16226729 has 2 divisors, whose sum is σ = 16226730. Its totient is φ = 16226728.

The previous prime is 16226713. The next prime is 16226737. The reversal of 16226729 is 92762261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16216729 + 10000 = 4027^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 16226729 - 2⁴ = 16226713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16226129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8113364 + 8113365.

It is an arithmetic number, because the mean of its divisors is an integer number (8113365).

Almost surely, 2^16226729 is an apocalyptic number.

It is an amenable number.

16226729 is a deficient number, since it is larger than the sum of its proper divisors (1).

16226729 is an equidigital number, since it uses as much as digits as its factorization.

16226729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 16226729 is about 4028.2414277200. The cubic root of 16226729 is about 253.1688843082.

The spelling of 16226729 in words is "sixteen million, two hundred twenty-six thousand, seven hundred twenty-nine".