1226076813 has 12 divisors (see below), whose sum is σ = 1907230780. Its totient is φ = 754508736.

The previous prime is 1226076811. The next prime is 1226076823. The reversal of 1226076813 is 3186706221.

It can be written as a sum of positive squares in 2 ways, for example, as 728028324 + 498048489 = 26982^2 + 22317^2 .

It is not a de Polignac number, because 1226076813 - 2¹ = 1226076811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226076811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5239528 + ... + 5239761.

Almost surely, 2^1226076813 is an apocalyptic number.

1226076813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1226076813 is a deficient number, since it is larger than the sum of its proper divisors (681153967).

1226076813 is a wasteful number, since it uses less digits than its factorization.

1226076813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10479308 (or 10479305 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1226076813 is about 35015.3796637992. The cubic root of 1226076813 is about 1070.3009061417.

The spelling of 1226076813 in words is "one billion, two hundred twenty-six million, seventy-six thousand, eight hundred thirteen".