3012505 has 4 divisors (see below), whose sum is σ = 3615012. Its totient is φ = 2410000.

The previous prime is 3012497. The next prime is 3012509. The reversal of 3012505 is 5052103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 927369 + 2085136 = 963^2 + 1444^2 .

It is not a de Polignac number, because 3012505 - 2³ = 3012497 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3012509) 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, 301246 + ... + 301255.

It is an arithmetic number, because the mean of its divisors is an integer number (903753).

Almost surely, 2^3012505 is an apocalyptic number.

It is an amenable number.

3012505 is a deficient number, since it is larger than the sum of its proper divisors (602507).

3012505 is an equidigital number, since it uses as much as digits as its factorization.

3012505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602506.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 3012505 is about 1735.6569361484. The cubic root of 3012505 is about 144.4250718047.

Adding to 3012505 its reverse (5052103), we get a palindrome (8064608).

The spelling of 3012505 in words is "three million, twelve thousand, five hundred five".