12523219 has 2 divisors, whose sum is σ = 12523220. Its totient is φ = 12523218.

The previous prime is 12523183. The next prime is 12523229. The reversal of 12523219 is 91232521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12523219 - 2⁹ = 12522707 is a prime.

It is a super-2 number, since 2×12523219² = 313662028243922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12523193 and 12523202.

It is not a weakly prime, because it can be changed into another prime (12523229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261609 + 6261610.

It is an arithmetic number, because the mean of its divisors is an integer number (6261610).

Almost surely, 2^12523219 is an apocalyptic number.

12523219 is a deficient number, since it is larger than the sum of its proper divisors (1).

12523219 is an equidigital number, since it uses as much as digits as its factorization.

12523219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

The square root of 12523219 is about 3538.8160449506. The cubic root of 12523219 is about 232.2230502002.

The spelling of 12523219 in words is "twelve million, five hundred twenty-three thousand, two hundred nineteen".