1266267 has 4 divisors (see below), whose sum is σ = 1688360. Its totient is φ = 844176.

The previous prime is 1266263. The next prime is 1266269. The reversal of 1266267 is 7626621.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1266267 - 2² = 1266263 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1266263) 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 in 3 ways as a sum of consecutive naturals, for example, 211042 + ... + 211047.

It is an arithmetic number, because the mean of its divisors is an integer number (422090).

2^1266267 is an apocalyptic number.

1266267 is a deficient number, since it is larger than the sum of its proper divisors (422093).

1266267 is an equidigital number, since it uses as much as digits as its factorization.

1266267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422092.

The product of its digits is 6048, while the sum is 30.

The square root of 1266267 is about 1125.2852971580. The cubic root of 1266267 is about 108.1870045426.

The spelling of 1266267 in words is "one million, two hundred sixty-six thousand, two hundred sixty-seven".