1315926609 has 16 divisors (see below), whose sum is σ = 1769962560. Its totient is φ = 869621760.

The previous prime is 1315926607. The next prime is 1315926613. The reversal of 1315926609 is 9066295131.

It is not a de Polignac number, because 1315926609 - 2¹ = 1315926607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1315926607) 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 15 ways as a sum of consecutive naturals, for example, 158637 + ... + 166725.

It is an arithmetic number, because the mean of its divisors is an integer number (110622660).

Almost surely, 2^1315926609 is an apocalyptic number.

It is an amenable number.

1315926609 is a deficient number, since it is larger than the sum of its proper divisors (454035951).

1315926609 is a wasteful number, since it uses less digits than its factorization.

1315926609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8560.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 1315926609 is about 36275.7027361290. The cubic root of 1315926609 is about 1095.8317760105.

The spelling of 1315926609 in words is "one billion, three hundred fifteen million, nine hundred twenty-six thousand, six hundred nine".