12539333 has 2 divisors, whose sum is σ = 12539334. Its totient is φ = 12539332.

The previous prime is 12539327. The next prime is 12539357. The reversal of 12539333 is 33393521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12271009 + 268324 = 3503^2 + 518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12539333 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12539296 and 12539305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12539363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6269666 + 6269667.

It is an arithmetic number, because the mean of its divisors is an integer number (6269667).

Almost surely, 2^12539333 is an apocalyptic number.

It is an amenable number.

12539333 is a deficient number, since it is larger than the sum of its proper divisors (1).

12539333 is an equidigital number, since it uses as much as digits as its factorization.

12539333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7290, while the sum is 29.

The square root of 12539333 is about 3541.0920631918. The cubic root of 12539333 is about 232.3226102888.

The spelling of 12539333 in words is "twelve million, five hundred thirty-nine thousand, three hundred thirty-three".