1266064 has 20 divisors (see below), whose sum is σ = 2500956. Its totient is φ = 620672.

The previous prime is 1266059. The next prime is 1266073. The reversal of 1266064 is 4606621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1016064 + 250000 = 1008^2 + 500^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102 + ... + 1594.

2^1266064 is an apocalyptic number.

It is an amenable number.

1266064 is a deficient number, since it is larger than the sum of its proper divisors (1234892).

1266064 is a wasteful number, since it uses less digits than its factorization.

1266064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554 (or 1548 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1266064 is about 1125.1950941948. The cubic root of 1266064 is about 108.1812229458.

The spelling of 1266064 in words is "one million, two hundred sixty-six thousand, sixty-four".