1331616009 has 8 divisors (see below), whose sum is σ = 1775866432. Its totient is φ = 887554800.

The previous prime is 1331615947. The next prime is 1331616029. The reversal of 1331616009 is 9006161331.

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

It is not a de Polignac number, because 1331616009 - 2⁹ = 1331615497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331616029) 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 in 7 ways as a sum of consecutive naturals, for example, 29974 + ... + 59679.

It is an arithmetic number, because the mean of its divisors is an integer number (221983304).

Almost surely, 2^1331616009 is an apocalyptic number.

It is an amenable number.

1331616009 is a deficient number, since it is larger than the sum of its proper divisors (444250423).

1331616009 is an equidigital number, since it uses as much as digits as its factorization.

1331616009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94607.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 1331616009 is about 36491.3141583035. The cubic root of 1331616009 is about 1100.1696732759.

The spelling of 1331616009 in words is "one billion, three hundred thirty-one million, six hundred sixteen thousand, nine".