12522717 has 6 divisors (see below), whose sum is σ = 18088382. Its totient is φ = 8348472.

The previous prime is 12522707. The next prime is 12522721. The reversal of 12522717 is 71722521.

It can be written as a sum of positive squares in only one way, i.e., 12467961 + 54756 = 3531^2 + 234^2 .

It is not a de Polignac number, because 12522717 - 2⁴ = 12522701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12522707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 695698 + ... + 695715.

Almost surely, 2^12522717 is an apocalyptic number.

It is an amenable number.

12522717 is a deficient number, since it is larger than the sum of its proper divisors (5565665).

12522717 is a wasteful number, since it uses less digits than its factorization.

12522717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391419 (or 1391416 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 12522717 is about 3538.7451165632. The cubic root of 12522717 is about 232.2199472300.

It can be divided in two parts, 1252 and 2717, that added together give a square (3969 = 63²).

The spelling of 12522717 in words is "twelve million, five hundred twenty-two thousand, seven hundred seventeen".