268226009 has 2 divisors, whose sum is σ = 268226010. Its totient is φ = 268226008.

The previous prime is 268225963. The next prime is 268226029. The reversal of 268226009 is 900622862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152448409 + 115777600 = 12347^2 + 10760^2 .

It is a cyclic number.

It is not a de Polignac number, because 268226009 - 2⁸ = 268225753 is a prime.

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 268226009.

It is not a weakly prime, because it can be changed into another prime (268226029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134113004 + 134113005.

It is an arithmetic number, because the mean of its divisors is an integer number (134113005).

Almost surely, 2^268226009 is an apocalyptic number.

It is an amenable number.

268226009 is a deficient number, since it is larger than the sum of its proper divisors (1).

268226009 is an equidigital number, since it uses as much as digits as its factorization.

268226009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 268226009 is about 16377.6069375230. The cubic root of 268226009 is about 644.9117592564.

The spelling of 268226009 in words is "two hundred sixty-eight million, two hundred twenty-six thousand, nine".