11905249 has 4 divisors (see below), whose sum is σ = 11985300. Its totient is φ = 11825200.

The previous prime is 11905247. The next prime is 11905259. The reversal of 11905249 is 94250911.

11905249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94250911 = 89 ⋅1058999.

It can be written as a sum of positive squares in 2 ways, for example, as 2560000 + 9345249 = 1600^2 + 3057^2 .

It is a cyclic number.

It is not a de Polignac number, because 11905249 - 2¹ = 11905247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11905249.

It is not an unprimeable number, because it can be changed into a prime (11905247) 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, 39802 + ... + 40099.

It is an arithmetic number, because the mean of its divisors is an integer number (2996325).

Almost surely, 2^11905249 is an apocalyptic number.

It is an amenable number.

11905249 is a deficient number, since it is larger than the sum of its proper divisors (80051).

11905249 is an equidigital number, since it uses as much as digits as its factorization.

11905249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80050.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 11905249 is about 3450.3983827958. The cubic root of 11905249 is about 228.3386843484.

The spelling of 11905249 in words is "eleven million, nine hundred five thousand, two hundred forty-nine".