1266255343 has 2 divisors, whose sum is σ = 1266255344. Its totient is φ = 1266255342.

The previous prime is 1266255293. The next prime is 1266255377. The reversal of 1266255343 is 3435526621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1266255343 - 2⁹ = 1266254831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266255743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633127671 + 633127672.

It is an arithmetic number, because the mean of its divisors is an integer number (633127672).

Almost surely, 2^1266255343 is an apocalyptic number.

1266255343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266255343 is an equidigital number, since it uses as much as digits as its factorization.

1266255343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 37.

The square root of 1266255343 is about 35584.4817722557. The cubic root of 1266255343 is about 1081.8667255894.

The spelling of 1266255343 in words is "one billion, two hundred sixty-six million, two hundred fifty-five thousand, three hundred forty-three".