12545219 has 2 divisors, whose sum is σ = 12545220. Its totient is φ = 12545218.

The previous prime is 12545209. The next prime is 12545233. The reversal of 12545219 is 91254521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12545219 - 2²⁰ = 11496643 is a prime.

It is a super-2 number, since 2×12545219² = 314765039515922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12545191 and 12545200.

It is not a weakly prime, because it can be changed into another prime (12545209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6272609 + 6272610.

It is an arithmetic number, because the mean of its divisors is an integer number (6272610).

Almost surely, 2^12545219 is an apocalyptic number.

12545219 is a deficient number, since it is larger than the sum of its proper divisors (1).

12545219 is an equidigital number, since it uses as much as digits as its factorization.

12545219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 29.

The square root of 12545219 is about 3541.9230652288. The cubic root of 12545219 is about 232.3589555760.

The spelling of 12545219 in words is "twelve million, five hundred forty-five thousand, two hundred nineteen".