1329999999 has 8 divisors (see below), whose sum is σ = 1773749040. Its totient is φ = 886458816.

The previous prime is 1329999977. The next prime is 1330000013. The reversal of 1329999999 is 9999999231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1329999999 - 2¹¹ = 1329997951 is a prime.

1329999999 is a modest number, since divided by 99999 gives 13299 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329999959) 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, 36364 + ... + 63105.

It is an arithmetic number, because the mean of its divisors is an integer number (221718630).

Almost surely, 2^1329999999 is an apocalyptic number.

1329999999 is a deficient number, since it is larger than the sum of its proper divisors (443749041).

1329999999 is an equidigital number, since it uses as much as digits as its factorization.

1329999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103929.

The product of its digits is 28697814, while the sum is 69.

The square root of 1329999999 is about 36469.1650439107. The cubic root of 1329999999 is about 1099.7244486106.

The spelling of 1329999999 in words is "one billion, three hundred twenty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".