1315015009 has 32 divisors (see below), whose sum is σ = 1727078400. Its totient is φ = 991544400.

The previous prime is 1315015001. The next prime is 1315015057. The reversal of 1315015009 is 9005105131.

It is not a de Polignac number, because 1315015009 - 2³ = 1315015001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315015001) 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 in 31 ways as a sum of consecutive naturals, for example, 111342 + ... + 122584.

It is an arithmetic number, because the mean of its divisors is an integer number (53971200).

Almost surely, 2^1315015009 is an apocalyptic number.

It is an amenable number.

1315015009 is a deficient number, since it is larger than the sum of its proper divisors (412063391).

1315015009 is a wasteful number, since it uses less digits than its factorization.

1315015009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11306 (or 11292 counting only the distinct ones).

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 1315015009 is about 36263.1356752281. The cubic root of 1315015009 is about 1095.5786740002.

The spelling of 1315015009 in words is "one billion, three hundred fifteen million, fifteen thousand, nine".