1329137288 has 8 divisors (see below), whose sum is σ = 2492132430. Its totient is φ = 664568640.

The previous prime is 1329137287. The next prime is 1329137291. The reversal of 1329137288 is 8827319231.

It can be written as a sum of positive squares in only one way, i.e., 761649604 + 567487684 = 27598^2 + 23822^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1329137281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83071073 + ... + 83071088.

Almost surely, 2^1329137288 is an apocalyptic number.

It is an amenable number.

1329137288 is a deficient number, since it is larger than the sum of its proper divisors (1162995142).

1329137288 is a wasteful number, since it uses less digits than its factorization.

1329137288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166142167 (or 166142163 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 1329137288 is about 36457.3351741457. The cubic root of 1329137288 is about 1099.4866166334.

The spelling of 1329137288 in words is "one billion, three hundred twenty-nine million, one hundred thirty-seven thousand, two hundred eighty-eight".