1263003226 has 16 divisors (see below), whose sum is σ = 2009446560. Its totient is φ = 593695440.

The previous prime is 1263003221. The next prime is 1263003229. The reversal of 1263003226 is 6223003621.

It is a happy number.

It is a super-3 number, since 3×1263003226³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1263003226.

It is not an unprimeable number, because it can be changed into a prime (1263003221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 121881 + ... + 131836.

It is an arithmetic number, because the mean of its divisors is an integer number (125590410).

Almost surely, 2^1263003226 is an apocalyptic number.

1263003226 is a deficient number, since it is larger than the sum of its proper divisors (746443334).

1263003226 is a wasteful number, since it uses less digits than its factorization.

1263003226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253869.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1263003226 is about 35538.7566749317. The cubic root of 1263003226 is about 1080.9397473265.

Adding to 1263003226 its reverse (6223003621), we get a palindrome (7486006847).

The spelling of 1263003226 in words is "one billion, two hundred sixty-three million, three thousand, two hundred twenty-six".