12523229 has 2 divisors, whose sum is σ = 12523230. Its totient is φ = 12523228.

The previous prime is 12523219. The next prime is 12523241. The reversal of 12523229 is 92232521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10048900 + 2474329 = 3170^2 + 1573^2 .

It is a cyclic number.

It is not a de Polignac number, because 12523229 - 2⁸ = 12522973 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12523198 and 12523207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12523219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261614 + 6261615.

It is an arithmetic number, because the mean of its divisors is an integer number (6261615).

Almost surely, 2^12523229 is an apocalyptic number.

It is an amenable number.

12523229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12523229 is an equidigital number, since it uses as much as digits as its factorization.

12523229 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 12523229 is about 3538.8174578523. The cubic root of 12523229 is about 232.2231120116.

The spelling of 12523229 in words is "twelve million, five hundred twenty-three thousand, two hundred twenty-nine".