11111265 has 24 divisors (see below), whose sum is σ = 21011328. Its totient is φ = 5387040.

The previous prime is 11111209. The next prime is 11111267. The reversal of 11111265 is 56211111.

It is a happy number.

11111265 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 11111265 - 2¹⁵ = 11078497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10729 + ... + 11718.

It is an arithmetic number, because the mean of its divisors is an integer number (875472).

Almost surely, 2^11111265 is an apocalyptic number.

11111265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11111265 is a deficient number, since it is larger than the sum of its proper divisors (9900063).

11111265 is a wasteful number, since it uses less digits than its factorization.

11111265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22469 (or 22466 counting only the distinct ones).

The product of its digits is 60, while the sum is 18.

The square root of 11111265 is about 3333.3564165867. The cubic root of 11111265 is about 223.1453468722.

Adding to 11111265 its reverse (56211111), we get a palindrome (67322376).

The spelling of 11111265 in words is "eleven million, one hundred eleven thousand, two hundred sixty-five".