11245543 has 4 divisors (see below), whose sum is σ = 11252448. Its totient is φ = 11238640.

The previous prime is 11245537. The next prime is 11245547. The reversal of 11245543 is 34554211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11245543 - 2¹³ = 11237351 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 (11245547) 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, 498 + ... + 4768.

It is an arithmetic number, because the mean of its divisors is an integer number (2813112).

Almost surely, 2^11245543 is an apocalyptic number.

11245543 is a deficient number, since it is larger than the sum of its proper divisors (6905).

11245543 is an equidigital number, since it uses as much as digits as its factorization.

11245543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6904.

The product of its digits is 2400, while the sum is 25.

The square root of 11245543 is about 3353.4374900988. The cubic root of 11245543 is about 224.0406428697.

Adding to 11245543 its reverse (34554211), we get a palindrome (45799754).

The spelling of 11245543 in words is "eleven million, two hundred forty-five thousand, five hundred forty-three".