11853243 has 8 divisors (see below), whose sum is σ = 17560400. Its totient is φ = 7902144.

The previous prime is 11853241. The next prime is 11853319. The reversal of 11853243 is 34235811.

It is a happy number.

11853243 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 11853243 - 2¹ = 11853241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 439009 = 11853243 / (1 + 1 + 8 + 5 + 3 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11853241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219478 + ... + 219531.

It is an arithmetic number, because the mean of its divisors is an integer number (2195050).

Almost surely, 2^11853243 is an apocalyptic number.

11853243 is a deficient number, since it is larger than the sum of its proper divisors (5707157).

11853243 is an equidigital number, since it uses as much as digits as its factorization.

11853243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439018 (or 439012 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 11853243 is about 3442.8539033773. The cubic root of 11853243 is about 228.0057131532.

It can be divided in two parts, 118 and 53243, that added together give a square (53361 = 231²).

The spelling of 11853243 in words is "eleven million, eight hundred fifty-three thousand, two hundred forty-three".