1266383 has 4 divisors (see below), whose sum is σ = 1271328. Its totient is φ = 1261440.

The previous prime is 1266379. The next prime is 1266389. The reversal of 1266383 is 3836621.

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

It is a cyclic number.

It is not a de Polignac number, because 1266383 - 2² = 1266379 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2066 + ... + 2607.

It is an arithmetic number, because the mean of its divisors is an integer number (317832).

2^1266383 is an apocalyptic number.

1266383 is a deficient number, since it is larger than the sum of its proper divisors (4945).

1266383 is an equidigital number, since it uses as much as digits as its factorization.

1266383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4944.

The product of its digits is 5184, while the sum is 29.

The square root of 1266383 is about 1125.3368384622. The cubic root of 1266383 is about 108.1903080347.

The spelling of 1266383 in words is "one million, two hundred sixty-six thousand, three hundred eighty-three".