1266480803 has 12 divisors (see below), whose sum is σ = 1473943392. Its totient is φ = 1085046480.

The previous prime is 1266480799. The next prime is 1266480829. The reversal of 1266480803 is 3080846621.

It is a happy number.

It is not a de Polignac number, because 1266480803 - 2² = 1266480799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1266480503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130913 + ... + 140253.

It is an arithmetic number, because the mean of its divisors is an integer number (122828616).

Almost surely, 2^1266480803 is an apocalyptic number.

1266480803 is a deficient number, since it is larger than the sum of its proper divisors (207462589).

1266480803 is an equidigital number, since it uses as much as digits as its factorization.

1266480803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12122 (or 12115 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 1266480803 is about 35587.6495852143. The cubic root of 1266480803 is about 1081.9309314907.

The spelling of 1266480803 in words is "one billion, two hundred sixty-six million, four hundred eighty thousand, eight hundred three".