1266349 has 4 divisors (see below), whose sum is σ = 1447264. Its totient is φ = 1085436.

The previous prime is 1266341. The next prime is 1266359. The reversal of 1266349 is 9436621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9436621 = 883 ⋅10687.

It is a cyclic number.

It is not a de Polignac number, because 1266349 - 2³ = 1266341 is a prime.

1266349 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1266349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266341) 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, 90447 + ... + 90460.

It is an arithmetic number, because the mean of its divisors is an integer number (361816).

2^1266349 is an apocalyptic number.

It is an amenable number.

1266349 is a deficient number, since it is larger than the sum of its proper divisors (180915).

1266349 is an equidigital number, since it uses as much as digits as its factorization.

1266349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180914.

The product of its digits is 7776, while the sum is 31.

The square root of 1266349 is about 1125.3217317727. The cubic root of 1266349 is about 108.1893397907.

The spelling of 1266349 in words is "one million, two hundred sixty-six thousand, three hundred forty-nine".