1266255306 has 12 divisors (see below), whose sum is σ = 2743553202. Its totient is φ = 422085096.

The previous prime is 1266255293. The next prime is 1266255343. The reversal of 1266255306 is 6035526621.

It is a happy number.

1266255306 is a `hidden beast` number, since 1 + 26 + 625 + 5 + 3 + 0 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 689535081 + 576720225 = 26259^2 + 24015^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35173741 + ... + 35173776.

Almost surely, 2^1266255306 is an apocalyptic number.

1266255306 is an abundant number, since it is smaller than the sum of its proper divisors (1477297896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1266255306 is a wasteful number, since it uses less digits than its factorization.

1266255306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70347525 (or 70347522 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 1266255306 is about 35584.4812523662. The cubic root of 1266255306 is about 1081.8667150520.

The spelling of 1266255306 in words is "one billion, two hundred sixty-six million, two hundred fifty-five thousand, three hundred six".