12520049 has 2 divisors, whose sum is σ = 12520050. Its totient is φ = 12520048.

The previous prime is 12520043. The next prime is 12520051. The reversal of 12520049 is 94002521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9394225 + 3125824 = 3065^2 + 1768^2 .

It is an emirp because it is prime and its reverse (94002521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12520049 - 2⁴ = 12520033 is a prime.

Together with 12520051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12520043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6260024 + 6260025.

It is an arithmetic number, because the mean of its divisors is an integer number (6260025).

Almost surely, 2^12520049 is an apocalyptic number.

It is an amenable number.

12520049 is a deficient number, since it is larger than the sum of its proper divisors (1).

12520049 is an equidigital number, since it uses as much as digits as its factorization.

12520049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 12520049 is about 3538.3681266934. The cubic root of 12520049 is about 232.2034543548.

The spelling of 12520049 in words is "twelve million, five hundred twenty thousand, forty-nine".