1266435485 has 16 divisors (see below), whose sum is σ = 1838992896. Its totient is φ = 817329408.

The previous prime is 1266435437. The next prime is 1266435551. The reversal of 1266435485 is 5845346621.

It is not a de Polignac number, because 1266435485 - 2⁶ = 1266435421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1063637 + ... + 1064826.

It is an arithmetic number, because the mean of its divisors is an integer number (114937056).

Almost surely, 2^1266435485 is an apocalyptic number.

It is an amenable number.

1266435485 is a deficient number, since it is larger than the sum of its proper divisors (572557411).

1266435485 is a wasteful number, since it uses less digits than its factorization.

1266435485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128492.

The product of its digits is 691200, while the sum is 44.

The square root of 1266435485 is about 35587.0128698659. The cubic root of 1266435485 is about 1081.9180265626.

The spelling of 1266435485 in words is "one billion, two hundred sixty-six million, four hundred thirty-five thousand, four hundred eighty-five".