11054543 has 4 divisors (see below), whose sum is σ = 11324208. Its totient is φ = 10784880.

The previous prime is 11054473. The next prime is 11054567. The reversal of 11054543 is 34545011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34545011 = 23 ⋅1501957.

It is a cyclic number.

It is not a de Polignac number, because 11054543 - 2⁸ = 11054287 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 (11054243) 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, 134771 + ... + 134852.

It is an arithmetic number, because the mean of its divisors is an integer number (2831052).

Almost surely, 2^11054543 is an apocalyptic number.

11054543 is a deficient number, since it is larger than the sum of its proper divisors (269665).

11054543 is an equidigital number, since it uses as much as digits as its factorization.

11054543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269664.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 11054543 is about 3324.8372892519. The cubic root of 11054543 is about 222.7649866494.

Adding to 11054543 its reverse (34545011), we get a palindrome (45599554).

The spelling of 11054543 in words is "eleven million, fifty-four thousand, five hundred forty-three".