1451520009 has 12 divisors (see below), whose sum is σ = 2123180800. Its totient is φ = 955430424.

The previous prime is 1451520001. The next prime is 1451520013. The reversal of 1451520009 is 9000251541.

1451520009 is a `hidden beast` number, since 1 + 451 + 5 + 200 + 0 + 9 = 666.

It is not a de Polignac number, because 1451520009 - 2³ = 1451520001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1451520001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1020049 + ... + 1021470.

Almost surely, 2^1451520009 is an apocalyptic number.

It is an amenable number.

1451520009 is a deficient number, since it is larger than the sum of its proper divisors (671660791).

1451520009 is a wasteful number, since it uses less digits than its factorization.

1451520009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041604 (or 2041601 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1451520009 is about 38098.8189974440. The cubic root of 1451520009 is about 1132.2465576161.

The spelling of 1451520009 in words is "one billion, four hundred fifty-one million, five hundred twenty thousand, nine".