12546397 has 2 divisors, whose sum is σ = 12546398. Its totient is φ = 12546396.

The previous prime is 12546383. The next prime is 12546421. The reversal of 12546397 is 79364521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10666756 + 1879641 = 3266^2 + 1371^2 .

It is an emirp because it is prime and its reverse (79364521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12546397 - 2⁷ = 12546269 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12546337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6273198 + 6273199.

It is an arithmetic number, because the mean of its divisors is an integer number (6273199).

Almost surely, 2^12546397 is an apocalyptic number.

It is an amenable number.

12546397 is a deficient number, since it is larger than the sum of its proper divisors (1).

12546397 is an equidigital number, since it uses as much as digits as its factorization.

12546397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 12546397 is about 3542.0893551688. The cubic root of 12546397 is about 232.3662282080.

The spelling of 12546397 in words is "twelve million, five hundred forty-six thousand, three hundred ninety-seven".