11546543 has 4 divisors (see below), whose sum is σ = 11828208. Its totient is φ = 11264880.

The previous prime is 11546531. The next prime is 11546569. The reversal of 11546543 is 34564511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34564511 = 691 ⋅50021.

It is a cyclic number.

It is not a de Polignac number, because 11546543 - 2¹⁰ = 11545519 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 (11546503) 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, 140771 + ... + 140852.

It is an arithmetic number, because the mean of its divisors is an integer number (2957052).

Almost surely, 2^11546543 is an apocalyptic number.

11546543 is a deficient number, since it is larger than the sum of its proper divisors (281665).

11546543 is an equidigital number, since it uses as much as digits as its factorization.

11546543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281664.

The product of its digits is 7200, while the sum is 29.

The square root of 11546543 is about 3398.0204531462. The cubic root of 11546543 is about 226.0219716545.

The spelling of 11546543 in words is "eleven million, five hundred forty-six thousand, five hundred forty-three".