1329143206 has 4 divisors (see below), whose sum is σ = 1993714812. Its totient is φ = 664571602.

The previous prime is 1329143191. The next prime is 1329143219. The reversal of 1329143206 is 6023419231.

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

It is a congruent number.

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, 332285800 + ... + 332285803.

It is an arithmetic number, because the mean of its divisors is an integer number (498428703).

Almost surely, 2^1329143206 is an apocalyptic number.

1329143206 is a deficient number, since it is larger than the sum of its proper divisors (664571606).

1329143206 is an equidigital number, since it uses as much as digits as its factorization.

1329143206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664571605.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 1329143206 is about 36457.4163374203. The cubic root of 1329143206 is about 1099.4882484568.

The spelling of 1329143206 in words is "one billion, three hundred twenty-nine million, one hundred forty-three thousand, two hundred six".