1266379 has 2 divisors, whose sum is σ = 1266380. Its totient is φ = 1266378.

The previous prime is 1266373. The next prime is 1266389. The reversal of 1266379 is 9736621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1266379 - 2³ = 1266371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1266371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633189 + 633190.

It is an arithmetic number, because the mean of its divisors is an integer number (633190).

2^1266379 is an apocalyptic number.

1266379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266379 is an equidigital number, since it uses as much as digits as its factorization.

1266379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 1266379 is about 1125.3350612151. The cubic root of 1266379 is about 108.1901941246.

The spelling of 1266379 in words is "one million, two hundred sixty-six thousand, three hundred seventy-nine".