12522487 has 2 divisors, whose sum is σ = 12522488. Its totient is φ = 12522486.

The previous prime is 12522479. The next prime is 12522529. The reversal of 12522487 is 78422521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12522487 - 2³ = 12522479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12522427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261243 + 6261244.

It is an arithmetic number, because the mean of its divisors is an integer number (6261244).

Almost surely, 2^12522487 is an apocalyptic number.

12522487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12522487 is an equidigital number, since it uses as much as digits as its factorization.

12522487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 31.

The square root of 12522487 is about 3538.7126190184. The cubic root of 12522487 is about 232.2185255227.

The spelling of 12522487 in words is "twelve million, five hundred twenty-two thousand, four hundred eighty-seven".