12430553 has 4 divisors (see below), whose sum is σ = 13161780. Its totient is φ = 11699328.

The previous prime is 12430549. The next prime is 12430559. The reversal of 12430553 is 35503421.

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 11235904 + 1194649 = 3352^2 + 1093^2 .

It is a cyclic number.

It is not a de Polignac number, because 12430553 - 2² = 12430549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12430559) 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, 365588 + ... + 365621.

It is an arithmetic number, because the mean of its divisors is an integer number (3290445).

Almost surely, 2^12430553 is an apocalyptic number.

It is an amenable number.

12430553 is a deficient number, since it is larger than the sum of its proper divisors (731227).

12430553 is an equidigital number, since it uses as much as digits as its factorization.

12430553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731226.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 12430553 is about 3525.6989377994. The cubic root of 12430553 is about 231.6488507137.

Adding to 12430553 its reverse (35503421), we get a palindrome (47933974).

The spelling of 12430553 in words is "twelve million, four hundred thirty thousand, five hundred fifty-three".