12305039 has 2 divisors, whose sum is σ = 12305040. Its totient is φ = 12305038.

The previous prime is 12305017. The next prime is 12305057. The reversal of 12305039 is 93050321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12305039 - 2⁸ = 12304783 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 (12305239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152519 + 6152520.

It is an arithmetic number, because the mean of its divisors is an integer number (6152520).

Almost surely, 2^12305039 is an apocalyptic number.

12305039 is a deficient number, since it is larger than the sum of its proper divisors (1).

12305039 is an equidigital number, since it uses as much as digits as its factorization.

12305039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 12305039 is about 3507.8539023169. The cubic root of 12305039 is about 230.8665421022.

The spelling of 12305039 in words is "twelve million, three hundred five thousand, thirty-nine".