11530015 has 16 divisors (see below), whose sum is σ = 16501248. Its totient is φ = 7562016.

The previous prime is 11529997. The next prime is 11530019. The reversal of 11530015 is 51003511.

11530015 = 901² + 902² + ... + 914².

11530015 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 11530015 - 2⁵ = 11529983 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 (11530019) 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, 6357 + ... + 7966.

It is an arithmetic number, because the mean of its divisors is an integer number (1031328).

Almost surely, 2^11530015 is an apocalyptic number.

11530015 is a deficient number, since it is larger than the sum of its proper divisors (4971233).

11530015 is a wasteful number, since it uses less digits than its factorization.

11530015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14358.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 11530015 is about 3395.5875780195. The cubic root of 11530015 is about 225.9140757236.

Adding to 11530015 its reverse (51003511), we get a palindrome (62533526).

The spelling of 11530015 in words is "eleven million, five hundred thirty thousand, fifteen".