12205453 has 4 divisors (see below), whose sum is σ = 13144348. Its totient is φ = 11266560.

The previous prime is 12205447. The next prime is 12205463. The reversal of 12205453 is 35450221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3928324 + 8277129 = 1982^2 + 2877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12205453 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469428 + ... + 469453.

It is an arithmetic number, because the mean of its divisors is an integer number (3286087).

Almost surely, 2^12205453 is an apocalyptic number.

12205453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12205453 is a deficient number, since it is larger than the sum of its proper divisors (938895).

12205453 is an equidigital number, since it uses as much as digits as its factorization.

12205453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938894.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 12205453 is about 3493.6303467883. The cubic root of 12205453 is about 230.2420451266.

Adding to 12205453 its reverse (35450221), we get a palindrome (47655674).

The spelling of 12205453 in words is "twelve million, two hundred five thousand, four hundred fifty-three".