1266105 has 8 divisors (see below), whose sum is σ = 2025792. Its totient is φ = 675248.

The previous prime is 1266101. The next prime is 1266107. The reversal of 1266105 is 5016621.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1266105 - 2² = 1266101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1266101) 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 7 ways as a sum of consecutive naturals, for example, 42189 + ... + 42218.

It is an arithmetic number, because the mean of its divisors is an integer number (253224).

2^1266105 is an apocalyptic number.

1266105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1266105 is a deficient number, since it is larger than the sum of its proper divisors (759687).

1266105 is an equidigital number, since it uses as much as digits as its factorization.

1266105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84415.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1266105 is about 1125.2133131100. The cubic root of 1266105 is about 108.1823907073.

The spelling of 1266105 in words is "one million, two hundred sixty-six thousand, one hundred five".