1501330009 has 3 divisors (see below), whose sum is σ = 1501368757. Its totient is φ = 1501291262.

The previous prime is 1501330001. The next prime is 1501330043. The reversal of 1501330009 is 9000331051.

The square root of 1501330009 is 38747.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1501330009 - 2³ = 1501330001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1501330001) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 19374 + ... + 58120.

Almost surely, 2^1501330009 is an apocalyptic number.

1501330009 is the 38747-th square number.

1501330009 is the 19374-th centered octagonal number.

It is an amenable number.

1501330009 is a deficient number, since it is larger than the sum of its proper divisors (38748).

1501330009 is an frugal number, since it uses more digits than its factorization.

1501330009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77494 (or 38747 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 22.

The cubic root of 1501330009 is about 1145.0524715502.

The spelling of 1501330009 in words is "one billion, five hundred one million, three hundred thirty thousand, nine".