12225823 has 2 divisors, whose sum is σ = 12225824. Its totient is φ = 12225822.

The previous prime is 12225779. The next prime is 12225847. The reversal of 12225823 is 32852221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12225823 - 2¹⁷ = 12094751 is a prime.

It is equal to p₈₀₁₈₇₁ and since 12225823 and 801871 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12225853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112911 + 6112912.

It is an arithmetic number, because the mean of its divisors is an integer number (6112912).

Almost surely, 2^12225823 is an apocalyptic number.

12225823 is a deficient number, since it is larger than the sum of its proper divisors (1).

12225823 is an equidigital number, since it uses as much as digits as its factorization.

12225823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 12225823 is about 3496.5444370121. The cubic root of 12225823 is about 230.3700595960.

The spelling of 12225823 in words is "twelve million, two hundred twenty-five thousand, eight hundred twenty-three".