11565249 has 4 divisors (see below), whose sum is σ = 15420336. Its totient is φ = 7710164.

The previous prime is 11565247. The next prime is 11565259. The reversal of 11565249 is 94256511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11565249 - 2¹ = 11565247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11565247) 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, 1927539 + ... + 1927544.

It is an arithmetic number, because the mean of its divisors is an integer number (3855084).

Almost surely, 2^11565249 is an apocalyptic number.

It is an amenable number.

11565249 is a deficient number, since it is larger than the sum of its proper divisors (3855087).

11565249 is an equidigital number, since it uses as much as digits as its factorization.

11565249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3855086.

The product of its digits is 10800, while the sum is 33.

The square root of 11565249 is about 3400.7718241599. The cubic root of 11565249 is about 226.1439615834.

The spelling of 11565249 in words is "eleven million, five hundred sixty-five thousand, two hundred forty-nine".