12180453 has 4 divisors (see below), whose sum is σ = 16240608. Its totient is φ = 8120300.

The previous prime is 12180401. The next prime is 12180461. The reversal of 12180453 is 35408121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12180453 - 2⁹ = 12179941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12280453) 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, 2030073 + ... + 2030078.

It is an arithmetic number, because the mean of its divisors is an integer number (4060152).

Almost surely, 2^12180453 is an apocalyptic number.

It is an amenable number.

12180453 is a deficient number, since it is larger than the sum of its proper divisors (4060155).

12180453 is an equidigital number, since it uses as much as digits as its factorization.

12180453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060154.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 12180453 is about 3490.0505726995. The cubic root of 12180453 is about 230.0847387822.

Adding to 12180453 its reverse (35408121), we get a palindrome (47588574).

The spelling of 12180453 in words is "twelve million, one hundred eighty thousand, four hundred fifty-three".