1329261339 has 16 divisors (see below), whose sum is σ = 2036862720. Its totient is φ = 755332320.

The previous prime is 1329261293. The next prime is 1329261377. The reversal of 1329261339 is 9331629231.

It is not a de Polignac number, because 1329261339 - 2⁷ = 1329261211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1329261297 and 1329261306.

It is not an unprimeable number, because it can be changed into a prime (1329263339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173052 + ... + 180569.

It is an arithmetic number, because the mean of its divisors is an integer number (127303920).

Almost surely, 2^1329261339 is an apocalyptic number.

1329261339 is a deficient number, since it is larger than the sum of its proper divisors (707601381).

1329261339 is a wasteful number, since it uses less digits than its factorization.

1329261339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353810.

The product of its digits is 52488, while the sum is 39.

The square root of 1329261339 is about 36459.0364518867. The cubic root of 1329261339 is about 1099.5208213195.

The spelling of 1329261339 in words is "one billion, three hundred twenty-nine million, two hundred sixty-one thousand, three hundred thirty-nine".