1264803226 has 4 divisors (see below), whose sum is σ = 1897204842. Its totient is φ = 632401612.

The previous prime is 1264803209. The next prime is 1264803233. The reversal of 1264803226 is 6223084621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1000773225 + 264030001 = 31635^2 + 16249^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1264803191 and 1264803200.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 316200805 + ... + 316200808.

Almost surely, 2^1264803226 is an apocalyptic number.

1264803226 is a deficient number, since it is larger than the sum of its proper divisors (632401616).

1264803226 is an equidigital number, since it uses as much as digits as its factorization.

1264803226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632401615.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 1264803226 is about 35564.0721234225. The cubic root of 1264803226 is about 1081.4530128299.

Adding to 1264803226 its reverse (6223084621), we get a palindrome (7487887847).

The spelling of 1264803226 in words is "one billion, two hundred sixty-four million, eight hundred three thousand, two hundred twenty-six".