12273539 has 2 divisors, whose sum is σ = 12273540. Its totient is φ = 12273538.

The previous prime is 12273523. The next prime is 12273571. The reversal of 12273539 is 93537221.

12273539 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12273571) can be obtained adding 12273539 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12273539 - 2⁴ = 12273523 is a prime.

It is not a weakly prime, because it can be changed into another prime (12273589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6136769 + 6136770.

It is an arithmetic number, because the mean of its divisors is an integer number (6136770).

Almost surely, 2^12273539 is an apocalyptic number.

12273539 is a deficient number, since it is larger than the sum of its proper divisors (1).

12273539 is an equidigital number, since it uses as much as digits as its factorization.

12273539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 32.

The square root of 12273539 is about 3503.3611004291. The cubic root of 12273539 is about 230.6693732721.

The spelling of 12273539 in words is "twelve million, two hundred seventy-three thousand, five hundred thirty-nine".