268554641 has 2 divisors, whose sum is σ = 268554642. Its totient is φ = 268554640.

The previous prime is 268554631. The next prime is 268554667. The reversal of 268554641 is 146455862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260144641 + 8410000 = 16129^2 + 2900^2 .

It is a cyclic number.

It is not a de Polignac number, because 268554641 - 2⁶ = 268554577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (268554631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134277320 + 134277321.

It is an arithmetic number, because the mean of its divisors is an integer number (134277321).

Almost surely, 2^268554641 is an apocalyptic number.

It is an amenable number.

268554641 is a deficient number, since it is larger than the sum of its proper divisors (1).

268554641 is an equidigital number, since it uses as much as digits as its factorization.

268554641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 41.

The square root of 268554641 is about 16387.6368339062. The cubic root of 268554641 is about 645.1750349231.

The spelling of 268554641 in words is "two hundred sixty-eight million, five hundred fifty-four thousand, six hundred forty-one".