1329257612 has 6 divisors (see below), whose sum is σ = 2326200828. Its totient is φ = 664628804.

The previous prime is 1329257603. The next prime is 1329257617. The reversal of 1329257612 is 2167529231.

It is not an unprimeable number, because it can be changed into a prime (1329257617) 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 as a sum of consecutive naturals, namely, 166157198 + ... + 166157205.

It is an arithmetic number, because the mean of its divisors is an integer number (387700138).

Almost surely, 2^1329257612 is an apocalyptic number.

It is an amenable number.

1329257612 is a deficient number, since it is larger than the sum of its proper divisors (996943216).

1329257612 is a wasteful number, since it uses less digits than its factorization.

1329257612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332314407 (or 332314405 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 1329257612 is about 36458.9853396937. The cubic root of 1329257612 is about 1099.5197937017.

The spelling of 1329257612 in words is "one billion, three hundred twenty-nine million, two hundred fifty-seven thousand, six hundred twelve".