12648959 has 4 divisors (see below), whose sum is σ = 13085160. Its totient is φ = 12212760.

The previous prime is 12648949. The next prime is 12648973. The reversal of 12648959 is 95984621.

12648959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95984621 = 523 ⋅183527.

It is a cyclic number.

It is not a de Polignac number, because 12648959 - 2⁴ = 12648943 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 (12648949) 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, 218057 + ... + 218114.

It is an arithmetic number, because the mean of its divisors is an integer number (3271290).

Almost surely, 2^12648959 is an apocalyptic number.

12648959 is a deficient number, since it is larger than the sum of its proper divisors (436201).

12648959 is an equidigital number, since it uses as much as digits as its factorization.

12648959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436200.

The product of its digits is 155520, while the sum is 44.

The square root of 12648959 is about 3556.5375015596. The cubic root of 12648959 is about 232.9976790647.

The spelling of 12648959 in words is "twelve million, six hundred forty-eight thousand, nine hundred fifty-nine".