1226663275 has 18 divisors (see below), whose sum is σ = 1602115340. Its totient is φ = 929103120.

The previous prime is 1226663267. The next prime is 1226663299. The reversal of 1226663275 is 5723666221.

It is not a de Polignac number, because 1226663275 - 2³ = 1226663267 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 762522 + ... + 764128.

Almost surely, 2^1226663275 is an apocalyptic number.

1226663275 is a deficient number, since it is larger than the sum of its proper divisors (375452065).

1226663275 is an frugal number, since it uses more digits than its factorization.

1226663275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243 (or 1631 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 1226663275 is about 35023.7530113493. The cubic root of 1226663275 is about 1070.4715291538.

The spelling of 1226663275 in words is "one billion, two hundred twenty-six million, six hundred sixty-three thousand, two hundred seventy-five".