1229076813 has 16 divisors (see below), whose sum is σ = 1646842176. Its totient is φ = 815358720.

The previous prime is 1229076791. The next prime is 1229076847. The reversal of 1229076813 is 3186709221.

It is not a de Polignac number, because 1229076813 - 2⁹ = 1229076301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229036813) 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 15 ways as a sum of consecutive naturals, for example, 790645 + ... + 792197.

It is an arithmetic number, because the mean of its divisors is an integer number (102927636).

Almost surely, 2^1229076813 is an apocalyptic number.

It is an amenable number.

1229076813 is a deficient number, since it is larger than the sum of its proper divisors (417765363).

1229076813 is a wasteful number, since it uses less digits than its factorization.

1229076813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 1229076813 is about 35058.1918101890. The cubic root of 1229076813 is about 1071.1731428008.

The spelling of 1229076813 in words is "one billion, two hundred twenty-nine million, seventy-six thousand, eight hundred thirteen".