12045505 has 8 divisors (see below), whose sum is σ = 14658624. Its totient is φ = 9500400.

The previous prime is 12045497. The next prime is 12045521. The reversal of 12045505 is 50554021.

12045505 = T₆₂ + T₆₃ + ... + T₄₁₆.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12045505 - 2³ = 12045497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16611 + ... + 17320.

It is an arithmetic number, because the mean of its divisors is an integer number (1832328).

Almost surely, 2^12045505 is an apocalyptic number.

It is an amenable number.

12045505 is a deficient number, since it is larger than the sum of its proper divisors (2613119).

12045505 is an equidigital number, since it uses as much as digits as its factorization.

12045505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34007.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 12045505 is about 3470.6634812381. The cubic root of 12045505 is about 229.2318736022.

Adding to 12045505 its reverse (50554021), we get a palindrome (62599526).

The spelling of 12045505 in words is "twelve million, forty-five thousand, five hundred five".