3012042509 has 4 divisors (see below), whose sum is σ = 3442334304. Its totient is φ = 2581750716.

The previous prime is 3012042437. The next prime is 3012042529. The reversal of 3012042509 is 9052402103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3012042509 - 2¹² = 3012038413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012042529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215145887 + ... + 215145900.

It is an arithmetic number, because the mean of its divisors is an integer number (860583576).

Almost surely, 2^3012042509 is an apocalyptic number.

It is an amenable number.

3012042509 is a deficient number, since it is larger than the sum of its proper divisors (430291795).

3012042509 is an equidigital number, since it uses as much as digits as its factorization.

3012042509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430291794.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 3012042509 is about 54882.0782132018. The cubic root of 3012042509 is about 1444.1768053460.

The spelling of 3012042509 in words is "three billion, twelve million, forty-two thousand, five hundred nine".