12578341 has 2 divisors, whose sum is σ = 12578342. Its totient is φ = 12578340.

The previous prime is 12578339. The next prime is 12578359. The reversal of 12578341 is 14387521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12574116 + 4225 = 3546^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 12578341 - 2¹ = 12578339 is a prime.

Together with 12578339, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12578441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6289170 + 6289171.

It is an arithmetic number, because the mean of its divisors is an integer number (6289171).

Almost surely, 2^12578341 is an apocalyptic number.

It is an amenable number.

12578341 is a deficient number, since it is larger than the sum of its proper divisors (1).

12578341 is an equidigital number, since it uses as much as digits as its factorization.

12578341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 12578341 is about 3546.5956916457. The cubic root of 12578341 is about 232.5632679402.

The spelling of 12578341 in words is "twelve million, five hundred seventy-eight thousand, three hundred forty-one".