12448519 has 4 divisors (see below), whose sum is σ = 12588480. Its totient is φ = 12308560.

The previous prime is 12448517. The next prime is 12448523. The reversal of 12448519 is 91584421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12448519 - 2¹ = 12448517 is a prime.

It is a super-2 number, since 2×12448519² = 309931250586722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12448517) 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, 69847 + ... + 70024.

It is an arithmetic number, because the mean of its divisors is an integer number (3147120).

Almost surely, 2^12448519 is an apocalyptic number.

12448519 is a deficient number, since it is larger than the sum of its proper divisors (139961).

12448519 is an equidigital number, since it uses as much as digits as its factorization.

12448519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139960.

The product of its digits is 11520, while the sum is 34.

The square root of 12448519 is about 3528.2458814544. The cubic root of 12448519 is about 231.7603984416.

The spelling of 12448519 in words is "twelve million, four hundred forty-eight thousand, five hundred nineteen".