12305641 has 2 divisors, whose sum is σ = 12305642. Its totient is φ = 12305640.

The previous prime is 12305633. The next prime is 12305653. The reversal of 12305641 is 14650321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11758041 + 547600 = 3429^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 12305641 - 2³ = 12305633 is a prime.

It is not a weakly prime, because it can be changed into another prime (12305441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152820 + 6152821.

It is an arithmetic number, because the mean of its divisors is an integer number (6152821).

Almost surely, 2^12305641 is an apocalyptic number.

It is an amenable number.

12305641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12305641 is an equidigital number, since it uses as much as digits as its factorization.

12305641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12305641 is about 3507.9397087179. The cubic root of 12305641 is about 230.8703069390.

Adding to 12305641 its reverse (14650321), we get a palindrome (26955962).

The spelling of 12305641 in words is "twelve million, three hundred five thousand, six hundred forty-one".