1266906 has 8 divisors (see below), whose sum is σ = 2533824. Its totient is φ = 422300.

The previous prime is 1266899. The next prime is 1266913. The reversal of 1266906 is 6096621.

It is an interprime number because it is at equal distance from previous prime (1266899) and next prime (1266913).

It is a sphenic number, since it is the product of 3 distinct primes.

1266906 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 105570 + ... + 105581.

It is an arithmetic number, because the mean of its divisors is an integer number (316728).

2^1266906 is an apocalyptic number.

1266906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1266906 is a wasteful number, since it uses less digits than its factorization.

1266906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211156.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1266906 is about 1125.5691893438. The cubic root of 1266906 is about 108.2051997232.

The spelling of 1266906 in words is "one million, two hundred sixty-six thousand, nine hundred six".