11515065 has 16 divisors (see below), whose sum is σ = 19225728. Its totient is φ = 5874176.

The previous prime is 11515057. The next prime is 11515067. The reversal of 11515065 is 56051511.

It is a cyclic number.

It is not a de Polignac number, because 11515065 - 2³ = 11515057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11515067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16344 + ... + 17033.

It is an arithmetic number, because the mean of its divisors is an integer number (1201608).

Almost surely, 2^11515065 is an apocalyptic number.

11515065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11515065 is a deficient number, since it is larger than the sum of its proper divisors (7710663).

11515065 is a wasteful number, since it uses less digits than its factorization.

11515065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33408.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 11515065 is about 3393.3854776609. The cubic root of 11515065 is about 225.8163922363.

Adding to 11515065 its reverse (56051511), we get a palindrome (67566576).

It can be divided in two parts, 1151506 and 5, that added together give a palindrome (1151511).

The spelling of 11515065 in words is "eleven million, five hundred fifteen thousand, sixty-five".