12229523 has 2 divisors, whose sum is σ = 12229524. Its totient is φ = 12229522.

The previous prime is 12229519. The next prime is 12229549. The reversal of 12229523 is 32592221.

It is an a-pointer prime, because the next prime (12229549) can be obtained adding 12229523 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12229523 - 2² = 12229519 is a prime.

It is a super-2 number, since 2×12229523² = 299122465615058, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 12229492 and 12229501.

It is not a weakly prime, because it can be changed into another prime (12229513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6114761 + 6114762.

It is an arithmetic number, because the mean of its divisors is an integer number (6114762).

Almost surely, 2^12229523 is an apocalyptic number.

12229523 is a deficient number, since it is larger than the sum of its proper divisors (1).

12229523 is an equidigital number, since it uses as much as digits as its factorization.

12229523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 12229523 is about 3497.0734907920. The cubic root of 12229523 is about 230.3932968387.

The spelling of 12229523 in words is "twelve million, two hundred twenty-nine thousand, five hundred twenty-three".