12219533 has 2 divisors, whose sum is σ = 12219534. Its totient is φ = 12219532.

The previous prime is 12219523. The next prime is 12219539. The reversal of 12219533 is 33591221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9132484 + 3087049 = 3022^2 + 1757^2 .

It is a cyclic number.

It is not a de Polignac number, because 12219533 - 2¹⁰ = 12218509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12219539) 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, 6109766 + 6109767.

It is an arithmetic number, because the mean of its divisors is an integer number (6109767).

Almost surely, 2^12219533 is an apocalyptic number.

It is an amenable number.

12219533 is a deficient number, since it is larger than the sum of its proper divisors (1).

12219533 is an equidigital number, since it uses as much as digits as its factorization.

12219533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 26.

The square root of 12219533 is about 3495.6448618245. The cubic root of 12219533 is about 230.3305455214.

The spelling of 12219533 in words is "twelve million, two hundred nineteen thousand, five hundred thirty-three".