12648157 has 2 divisors, whose sum is σ = 12648158. Its totient is φ = 12648156.

The previous prime is 12648151. The next prime is 12648169. The reversal of 12648157 is 75184621.

12648157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7214596 + 5433561 = 2686^2 + 2331^2 .

It is an emirp because it is prime and its reverse (75184621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12648157 - 2¹⁵ = 12615389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12648151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6324078 + 6324079.

It is an arithmetic number, because the mean of its divisors is an integer number (6324079).

Almost surely, 2^12648157 is an apocalyptic number.

It is an amenable number.

12648157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12648157 is an equidigital number, since it uses as much as digits as its factorization.

12648157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 34.

The square root of 12648157 is about 3556.4247496608. The cubic root of 12648157 is about 232.9927545992.

Subtracting 12648157 from its reverse (75184621), we obtain a square (62536464 = 7908²).

The spelling of 12648157 in words is "twelve million, six hundred forty-eight thousand, one hundred fifty-seven".