12648169 has 2 divisors, whose sum is σ = 12648170. Its totient is φ = 12648168.

The previous prime is 12648157. The next prime is 12648173. The reversal of 12648169 is 96184621.

It is a happy number.

12648169 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10989225 + 1658944 = 3315^2 + 1288^2 .

It is a cyclic number.

It is not a de Polignac number, because 12648169 - 2¹¹ = 12646121 is a prime.

It is a super-2 number, since 2×12648169² = 319952358105122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12648269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6324084 + 6324085.

It is an arithmetic number, because the mean of its divisors is an integer number (6324085).

Almost surely, 2^12648169 is an apocalyptic number.

It is an amenable number.

12648169 is a deficient number, since it is larger than the sum of its proper divisors (1).

12648169 is an equidigital number, since it uses as much as digits as its factorization.

12648169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 12648169 is about 3556.4264367480. The cubic root of 12648169 is about 232.9928282835.

The spelling of 12648169 in words is "twelve million, six hundred forty-eight thousand, one hundred sixty-nine".