11540065 has 12 divisors (see below), whose sum is σ = 14204412. Its totient is φ = 9000320.

The previous prime is 11540033. The next prime is 11540069. The reversal of 11540065 is 56004511.

It can be written as a sum of positive squares in 6 ways, for example, as 984064 + 10556001 = 992^2 + 3249^2 .

It is not a de Polignac number, because 11540065 - 2⁵ = 11540033 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11540069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7719 + ... + 9091.

It is an arithmetic number, because the mean of its divisors is an integer number (1183701).

Almost surely, 2^11540065 is an apocalyptic number.

It is an amenable number.

11540065 is a deficient number, since it is larger than the sum of its proper divisors (2664347).

11540065 is an equidigital number, since it uses as much as digits as its factorization.

11540065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460 (or 1419 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 11540065 is about 3397.0671173823. The cubic root of 11540065 is about 225.9796950980.

Adding to 11540065 its reverse (56004511), we get a palindrome (67544576).

The spelling of 11540065 in words is "eleven million, five hundred forty thousand, sixty-five".