12053543 has 4 divisors (see below), whose sum is σ = 12687960. Its totient is φ = 11419128.

The previous prime is 12053519. The next prime is 12053551. The reversal of 12053543 is 34535021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34535021 = 769 ⋅44909.

It is a cyclic number.

It is not a de Polignac number, because 12053543 - 2¹⁴ = 12037159 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 (12053143) 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, 317180 + ... + 317217.

It is an arithmetic number, because the mean of its divisors is an integer number (3171990).

Almost surely, 2^12053543 is an apocalyptic number.

12053543 is a deficient number, since it is larger than the sum of its proper divisors (634417).

12053543 is an equidigital number, since it uses as much as digits as its factorization.

12053543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634416.

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

The square root of 12053543 is about 3471.8212799624. The cubic root of 12053543 is about 229.2828512934.

Adding to 12053543 its reverse (34535021), we get a palindrome (46588564).

The spelling of 12053543 in words is "twelve million, fifty-three thousand, five hundred forty-three".