1359531009 has 12 divisors (see below), whose sum is σ = 2027114752. Its totient is φ = 877116600.

The previous prime is 1359530999. The next prime is 1359531059. The reversal of 1359531009 is 9001359531.

It is not a de Polignac number, because 1359531009 - 2⁴ = 1359530993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1359531059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2436157 + ... + 2436714.

Almost surely, 2^1359531009 is an apocalyptic number.

It is an amenable number.

1359531009 is a deficient number, since it is larger than the sum of its proper divisors (667583743).

1359531009 is a wasteful number, since it uses less digits than its factorization.

1359531009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872908 (or 4872905 counting only the distinct ones).

The product of its (nonzero) digits is 18225, while the sum is 36.

The square root of 1359531009 is about 36871.8186288661. The cubic root of 1359531009 is about 1107.8042813232.

The spelling of 1359531009 in words is "one billion, three hundred fifty-nine million, five hundred thirty-one thousand, nine".