12652249 has 3 divisors (see below), whose sum is σ = 12655807. Its totient is φ = 12648692.

The previous prime is 12652229. The next prime is 12652253. The reversal of 12652249 is 94225621.

The square root of 12652249 is 3557.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94225621 = 7 ⋅13460803.

It can be written as a sum of positive squares in only one way, i.e., 1550025 + 11102224 = 1245^2 + 3332^2 .

It is not a de Polignac number, because 12652249 - 2⁵ = 12652217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12652249.

It is not an unprimeable number, because it can be changed into a prime (12652219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1779 + ... + 5335.

Almost surely, 2^12652249 is an apocalyptic number.

12652249 is the 3557-th square number.

12652249 is the 1779-th centered octagonal number.

It is an amenable number.

12652249 is a deficient number, since it is larger than the sum of its proper divisors (3558).

12652249 is an frugal number, since it uses more digits than its factorization.

12652249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7114 (or 3557 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The cubic root of 12652249 is about 233.0178782477.

The spelling of 12652249 in words is "twelve million, six hundred fifty-two thousand, two hundred forty-nine".