1520316009 has 12 divisors (see below), whose sum is σ = 2198730352. Its totient is φ = 1012289400.

The previous prime is 1520315969. The next prime is 1520316011. The reversal of 1520316009 is 9006130251.

1520316009 is a `hidden beast` number, since 1 + 5 + 20 + 31 + 600 + 9 = 666.

It is not a de Polignac number, because 1520316009 - 2¹⁷ = 1520184937 is a prime.

It is a super-2 number, since 2×1520316009² = 4622721534443376162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1520316019) 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 11 ways as a sum of consecutive naturals, for example, 96847 + ... + 111444.

Almost surely, 2^1520316009 is an apocalyptic number.

It is an amenable number.

1520316009 is a deficient number, since it is larger than the sum of its proper divisors (678414343).

1520316009 is a wasteful number, since it uses less digits than its factorization.

1520316009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209108 (or 209105 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 1520316009 is about 38991.2298985297. The cubic root of 1520316009 is about 1149.8590902334.

The spelling of 1520316009 in words is "one billion, five hundred twenty million, three hundred sixteen thousand, nine".