12305057 has 2 divisors, whose sum is σ = 12305058. Its totient is φ = 12305056.

The previous prime is 12305039. The next prime is 12305071. The reversal of 12305057 is 75050321.

12305057 is digitally balanced in base 2, 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., 7447441 + 4857616 = 2729^2 + 2204^2 .

It is an emirp because it is prime and its reverse (75050321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12305057 - 2¹⁴ = 12288673 is a prime.

It is not a weakly prime, because it can be changed into another prime (12305017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152528 + 6152529.

It is an arithmetic number, because the mean of its divisors is an integer number (6152529).

Almost surely, 2^12305057 is an apocalyptic number.

It is an amenable number.

12305057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12305057 is an equidigital number, since it uses as much as digits as its factorization.

12305057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 12305057 is about 3507.8564679873. The cubic root of 12305057 is about 230.8666546739.

Adding to 12305057 its reverse (75050321), we get a palindrome (87355378).

The spelling of 12305057 in words is "twelve million, three hundred five thousand, fifty-seven".