1263227066 has 16 divisors (see below), whose sum is σ = 1973349000. Its totient is φ = 605736768.

The previous prime is 1263226981. The next prime is 1263227071. The reversal of 1263227066 is 6607223621.

It can be written as a sum of positive squares in 4 ways, for example, as 936666025 + 326561041 = 30605^2 + 18071^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64445 + ... + 81728.

Almost surely, 2^1263227066 is an apocalyptic number.

1263227066 is a deficient number, since it is larger than the sum of its proper divisors (710121934).

1263227066 is a wasteful number, since it uses less digits than its factorization.

1263227066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146353.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 1263227066 is about 35541.9057733262. The cubic root of 1263227066 is about 1081.0036012834.

The spelling of 1263227066 in words is "one billion, two hundred sixty-three million, two hundred twenty-seven thousand, sixty-six".