11854143 has 24 divisors (see below), whose sum is σ = 19813248. Its totient is φ = 6689232.

The previous prime is 11854061. The next prime is 11854147. The reversal of 11854143 is 34145811.

It is a happy number.

11854143 is a `hidden beast` number, since 118 + 541 + 4 + 3 = 666.

11854143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11854143 - 2¹⁷ = 11723071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11854147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4096 + ... + 6362.

It is an arithmetic number, because the mean of its divisors is an integer number (825552).

Almost surely, 2^11854143 is an apocalyptic number.

11854143 is a deficient number, since it is larger than the sum of its proper divisors (7959105).

11854143 is a wasteful number, since it uses less digits than its factorization.

11854143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363 (or 2360 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 11854143 is about 3442.9846064135. The cubic root of 11854143 is about 228.0114837244.

Adding to 11854143 its reverse (34145811), we get a palindrome (45999954).

The spelling of 11854143 in words is "eleven million, eight hundred fifty-four thousand, one hundred forty-three".