1266633 has 24 divisors (see below), whose sum is σ = 1984320. Its totient is φ = 776160.

The previous prime is 1266631. The next prime is 1266677. The reversal of 1266633 is 3366621.

It is not a de Polignac number, because 1266633 - 2¹ = 1266631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1266597 and 1266606.

It is not an unprimeable number, because it can be changed into a prime (1266631) 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 23 ways as a sum of consecutive naturals, for example, 5898 + ... + 6108.

It is an arithmetic number, because the mean of its divisors is an integer number (82680).

2^1266633 is an apocalyptic number.

It is an amenable number.

1266633 is a deficient number, since it is larger than the sum of its proper divisors (717687).

1266633 is a wasteful number, since it uses less digits than its factorization.

1266633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 266 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 1266633 is about 1125.4479108337. The cubic root of 1266633 is about 108.1974269441.

The spelling of 1266633 in words is "one million, two hundred sixty-six thousand, six hundred thirty-three".