16268261 has 2 divisors, whose sum is σ = 16268262. Its totient is φ = 16268260.

The previous prime is 16268257. The next prime is 16268281. The reversal of 16268261 is 16286261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12208036 + 4060225 = 3494^2 + 2015^2 .

It is an emirp because it is prime and its reverse (16286261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16268261 - 2² = 16268257 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16268281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8134130 + 8134131.

It is an arithmetic number, because the mean of its divisors is an integer number (8134131).

Almost surely, 2^16268261 is an apocalyptic number.

It is an amenable number.

16268261 is a deficient number, since it is larger than the sum of its proper divisors (1).

16268261 is an equidigital number, since it uses as much as digits as its factorization.

16268261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The square root of 16268261 is about 4033.3932364698. The cubic root of 16268261 is about 253.3846939186.

The spelling of 16268261 in words is "sixteen million, two hundred sixty-eight thousand, two hundred sixty-one".