1229132799 has 20 divisors (see below), whose sum is σ = 1837447920. Its totient is φ = 818825760.

The previous prime is 1229132791. The next prime is 1229132813. The reversal of 1229132799 is 9972319221.

It is not a de Polignac number, because 1229132799 - 2³ = 1229132791 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229132791) 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 19 ways as a sum of consecutive naturals, for example, 125614 + ... + 135044.

It is an arithmetic number, because the mean of its divisors is an integer number (91872396).

Almost surely, 2^1229132799 is an apocalyptic number.

1229132799 is a deficient number, since it is larger than the sum of its proper divisors (608315121).

1229132799 is an equidigital number, since it uses as much as digits as its factorization.

1229132799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11052 (or 11043 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 1229132799 is about 35058.9902735375. The cubic root of 1229132799 is about 1071.1894069834.

The spelling of 1229132799 in words is "one billion, two hundred twenty-nine million, one hundred thirty-two thousand, seven hundred ninety-nine".