12209653 has 6 divisors (see below), whose sum is σ = 12322806. Its totient is φ = 12097512.

The previous prime is 12209651. The next prime is 12209683. The reversal of 12209653 is 35690221.

It can be written as a sum of positive squares in only one way, i.e., 10903204 + 1306449 = 3302^2 + 1143^2 .

It is not a de Polignac number, because 12209653 - 2¹ = 12209651 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 (12209651) 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, 15751 + ... + 16507.

It is an arithmetic number, because the mean of its divisors is an integer number (2053801).

Almost surely, 2^12209653 is an apocalyptic number.

It is an amenable number.

12209653 is a deficient number, since it is larger than the sum of its proper divisors (113153).

12209653 is an frugal number, since it uses more digits than its factorization.

12209653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 12209653 is about 3494.2313890182. The cubic root of 12209653 is about 230.2684515121.

Adding to 12209653 its reverse (35690221), we get a palindrome (47899874).

The spelling of 12209653 in words is "twelve million, two hundred nine thousand, six hundred fifty-three".