12305149 has 2 divisors, whose sum is σ = 12305150. Its totient is φ = 12305148.

The previous prime is 12305113. The next prime is 12305159. The reversal of 12305149 is 94150321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10936249 + 1368900 = 3307^2 + 1170^2 .

It is an emirp because it is prime and its reverse (94150321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12305149 - 2¹⁷ = 12174077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12305159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152574 + 6152575.

It is an arithmetic number, because the mean of its divisors is an integer number (6152575).

Almost surely, 2^12305149 is an apocalyptic number.

It is an amenable number.

12305149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12305149 is an equidigital number, since it uses as much as digits as its factorization.

12305149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 12305149 is about 3507.8695813841. The cubic root of 12305149 is about 230.8672300384.

The spelling of 12305149 in words is "twelve million, three hundred five thousand, one hundred forty-nine".