1331408689 has 8 divisors (see below), whose sum is σ = 1435159040. Its totient is φ = 1227848976.

The previous prime is 1331408671. The next prime is 1331408713. The reversal of 1331408689 is 9868041331.

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

It is a cyclic number.

It is not a de Polignac number, because 1331408689 - 2¹¹ = 1331406641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331408609) 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 7 ways as a sum of consecutive naturals, for example, 32979 + ... + 61240.

It is an arithmetic number, because the mean of its divisors is an integer number (179394880).

Almost surely, 2^1331408689 is an apocalyptic number.

It is an amenable number.

1331408689 is a deficient number, since it is larger than the sum of its proper divisors (103750351).

1331408689 is a wasteful number, since it uses less digits than its factorization.

1331408689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95319.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1331408689 is about 36488.4733717375. The cubic root of 1331408689 is about 1100.1125749800.

The spelling of 1331408689 in words is "one billion, three hundred thirty-one million, four hundred eight thousand, six hundred eighty-nine".